Servnet Research · Server OS support · 2026 census
Which servers are certified for both Windows Server 2025 and VMware ESXi 9?
We checked 334 Dell PowerEdge, HPE ProLiant and Lenovo ThinkSystem server models against Broadcom's compatibility guide, Microsoft's Windows Server Catalog and each maker's own support matrix. Support falls away sharply with age, and for some models the official sources disagree.
90%
of current-generation models (2023 on) are certified for both: 98 of 109
51%
of the 2021–22 generation: 68 of 72 have ESXi 9, only 39 have Windows Server 2025
16%
of 2017–20 models (Dell 14G, HPE Gen10, Lenovo V1): 14 of 85
40
ESXi 9 listings marked “confirm with vendor”, which the maker did not submit for certification
Updated 19 September 2026 · Broadcom, Microsoft, Dell, HPE and Lenovo compatibility listings, checked September 2026 · method and dataset below
Read this first
What counts as support in this study
A model counts as ESXi 9 certified when it appears in the Broadcom Compatibility Guide for ESXi 9.0 or 9.1 without the “VCF Supported. Confirm w/Vendor” flag. Broadcom’s KB 428874 uses that flag for systems the server maker did not submit for certification: VMware supports its software, but hardware and firmware support is the maker’s call. We count those 40 listings separately.
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A model counts when Microsoft’s Windows Server Catalog lists it as certified for Windows Server 2025, or when the maker’s own matrix (Dell, HPE, Lenovo OSIG) lists it as supported. Where a maker’s own pages contradict each other we say so rather than pick a side.
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Support depends on the processor, BIOS, storage controller and network adapters too. Some models are supported only with certain processors; the dataset notes these. Use this study to shortlist, then check the exact configuration. The compatibility checker gives a verdict per processor family.
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Scope: 334 rack, tower, blade, modular and edge server models. 228 vSAN ReadyNode, HCI and other appliance listings are in the downloadable dataset but not in the headline figures, and 10 listings that don’t map to a current model from these makers are excluded.
Key findings
What the official listings show
- Current servers are covered. Every one of the 109 current-generation models is ESXi 9 certified, and 98 (89.9%) are also listed for Windows Server 2025. The 11 without Windows Server 2025 are GPU, liquid-cooled HPC or telecom-edge systems (XE7740, XE8640, XE9640, XE9680, XR8610t, XR8620t, DL110 Gen11, SC750 V4, SR680a V3, SR680a V4, SR780a V3).
- The 2021–22 generation is where Windows Server 2025 drops away. 68 of its 72 models are ESXi 9 certified, but only 39 are listed for Windows Server 2025. By maker: Dell 15G 10 of 25, HPE Gen10 Plus 16 of 21, Lenovo V2 11 of 26.
- For 2017–20 servers the makers took different paths. HPE certified 17 of 22 Gen10 models for ESXi 9 and 12 for both. Dell certified 6 of 30 14G models (M640 VRTX, R240, R340, R6415, T140, T340); another 19 are listed only as “confirm with vendor”. Lenovo certified 2 of 33 V1 models, with 21 listed as “confirm with vendor”.
- 40 of the 259 ESXi 9 listings (15%) are “confirm with vendor”, all of them Dell 14G or Lenovo V1-class systems. Counting only maker-certified listings, 65.6% of models have ESXi 9, not 78%.
- None of the 43 models launched before 2017 (Dell 13G, HPE Gen9, Lenovo System x and older ThinkServer) is listed for ESXi 9 or Windows Server 2025.
The age cliff
Support by server generation
Each model counted once, by its best outcome. The makers' generations are grouped by launch era so the three can be compared like for like.
Current generation (2023 onwards)109 models · 89.9% certified for both
Previous generation (2021–2022)72 models · 51.4% certified for both
Two generations back (2017–2020)85 models · 16.5% certified for both
Older (before 2017)43 models · 0% certified for both
ESXi 9 certified and Windows Server 2025ESXi 9 certified, no Windows Server 2025ESXi 9 only as “confirm with vendor”Windows Server 2025, no ESXi 9Neither
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Sources: Broadcom Compatibility Guide, Windows Server Catalog, Dell, HPE and Lenovo support matrices, checked September 2026. Models without an assignable generation are in the dataset below.
| Maker | Current (2023 on) | 2021–22 | 2017–20 |
|---|---|---|---|
| Dell | 36 of 42 | 10 of 25 | 0 of 30 |
| HPE | 27 of 28 | 16 of 21 | 12 of 22 |
| Lenovo | 35 of 39 | 11 of 26 | 2 of 33 |
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Models certified for both ESXi 9 and Windows Server 2025, out of all models the maker has in that era. Current: Dell 16G/17G, HPE Gen11/Gen12, Lenovo V3/V4. 2021–22: Dell 15G, HPE Gen10 Plus (incl. v2), Lenovo V2. 2017–20: Dell 14G, HPE Gen10, Lenovo V1.
Every generation
By maker and generation
| Maker | Generation | Models | ESXi 9 certified | ESXi 9 confirm with vendor | Windows Server 2025 | Both | Neither |
|---|---|---|---|---|---|---|---|
| Dell | 13G | 15 | 0 | 0 | 0 | 0 | 15 |
| Dell | 14G | 30 | 6 | 19 | 0 | 0 | 5 |
| Dell | 15G | 25 | 24 | 0 | 10 | 10 | 1 |
| Dell | 16G | 29 | 29 | 0 | 24 | 24 | 0 |
| Dell | 17G | 13 | 13 | 0 | 12 | 12 | 0 |
| Dell | Unassigned | 2 | 0 | 0 | 0 | 0 | 2 |
| HPE | Gen9 | 11 | 0 | 0 | 0 | 0 | 11 |
| HPE | Gen10 | 22 | 17 | 0 | 12 | 12 | 5 |
| HPE | Gen10 Plus | 18 | 16 | 0 | 15 | 13 | 0 |
| HPE | Gen10 Plus v2 | 3 | 3 | 0 | 3 | 3 | 0 |
| HPE | Gen11 | 17 | 17 | 0 | 16 | 16 | 0 |
| HPE | Gen12 | 11 | 11 | 0 | 11 | 11 | 0 |
| HPE | Unassigned | 22 | 16 | 0 | 17 | 14 | 3 |
| Lenovo | System x M5 | 4 | 0 | 0 | 0 | 0 | 4 |
| Lenovo | System x M6 | 1 | 0 | 0 | 0 | 0 | 1 |
| Lenovo | System x X6 | 2 | 0 | 0 | 0 | 0 | 2 |
| Lenovo | ThinkServer | 10 | 0 | 0 | 0 | 0 | 10 |
| Lenovo | ThinkSystem V1 | 33 | 2 | 21 | 5 | 2 | 9 |
| Lenovo | ThinkSystem V2 | 26 | 25 | 0 | 11 | 11 | 1 |
| Lenovo | ThinkSystem V3 | 28 | 28 | 0 | 26 | 26 | 0 |
| Lenovo | ThinkSystem V4 | 11 | 11 | 0 | 9 | 9 | 0 |
| Lenovo | Unassigned | 1 | 1 | 0 | 1 | 1 | 0 |
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“Both” means ESXi 9 certified by the maker and Windows Server 2025 certified or supported. “Unassigned” covers HPE Superdome, Edgeline, Cray and Alletra storage servers, Dell DSS and one Lenovo WenTian model, which sit outside the numbered generations.
Where sources disagree
When the maker’s own documents contradict each other
We report these as found rather than choose a side. If one of these servers matters to you, ask the maker which statement applies.
Dell’s Windows Server matrix has no Windows Server 2025 column for 14th generation, and Dell’s per-model support pages stop at Windows Server 2022. But the R640/R740 BIOS 2.22.2 release notes mention Windows Server 2025 support, and Microsoft’s catalog lists Dell’s AX-640 and AX-740XD, which run on R640 and R740xd hardware, as certified for Windows Server 2025. We record 14G as “not listed”, following Dell’s matrix.
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For C6520, C6525, R650xs, R750xa, R750xs, R7515, XR11, XR12, Dell’s Windows Server matrix gives no Windows Server 2025 support and Microsoft’s catalog has no certification, but Dell’s per-model Supported OS page lists Windows Server 2025. These are shown as “sources disagree” and not counted as supported.
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30 models are listed for Windows Server 2025 with a processor condition: for example, 1st Gen Xeon Scalable (Skylake) parts that Microsoft’s Windows Server processor list doesn’t name, or Xeon 6 E-core and Xeon CPU Max configurations that Dell and HPE exclude. The condition is shown against each model in the table below.
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Look up a server
All 334 server models
Search by model, filter by maker or outcome. The Windows Server 2025 status links to the page it came from.
334 of 334 server models
| Model | Generation | ESXi 9 listing | Newest ESXi listed | Windows Server 2025 | Windows Server 2022 |
|---|---|---|---|---|---|
| Dell DSS 8440 | 14G | Confirm with vendor | 9.1 | Not listed | Not supported |
| Dell DSS 9620 | — | Not listed | 7.0 | Not listed | Not listed |
| Dell DSS 9630 | — | Not listed | 7.0 | Not listed | Not listed |
| Dell POWEREDGE XE2420 | 14G | Confirm with vendor | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge C4140 | 14G | Not listed | 7.0 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge C6420 | 14G | Confirm with vendor | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge C6520 | 15G | Certified | 9.1 | Sources disagree | Certified (Microsoft catalog) |
| Dell PowerEdge C6525 | 15G | Certified | 9.1 | Sources disagree | Certified (Microsoft catalog) |
| Dell PowerEdge C6615 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge C6620 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge FC430 | 13G | Not listed | 7.0 | Not listed | Not listed |
| Dell PowerEdge FC630 | 13G | Not listed | 7.0 | Not listed | Not listed |
| Dell PowerEdge FC640 | 14G | Confirm with vendor | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge FC830 | 13G | Not listed | 7.0 | Not listed | Not listed |
| Dell PowerEdge HS5610 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge HS5620 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge M630 | 13G | Not listed | 7.0 | Not listed | Not listed |
| Dell PowerEdge M630 (for PE VRTX) | 13G | Not listed | 7.0 | Not listed | Not listed |
| Dell PowerEdge M640 | 14G | Confirm with vendor | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge M640 VRTX | 14G | Certified | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge M830 | 13G | Not listed | 7.0 | Not listed | Not listed |
| Dell PowerEdge M830 (for PE VRTX) | 13G | Not listed | 7.0 | Not listed | Not listed |
| Dell PowerEdge MX740c | 14G | Confirm with vendor | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge MX750c | 15G | Certified | 9.1 | Not supported | Certified (Microsoft catalog) |
| Dell PowerEdge MX760c | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge MX840c | 14G | Confirm with vendor | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge R240 | 14G | Certified | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge R250 | 15G | Certified | 9.1 | Not supported | Certified (Microsoft catalog) |
| Dell PowerEdge R260 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R340 | 14G | Certified | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge R350 | 15G | Certified | 9.1 | Not supported | Certified (Microsoft catalog) |
| Dell PowerEdge R360 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R430 | 13G | Not listed | 7.0 | Not listed | Not listed |
| Dell PowerEdge R440 | 14G | Confirm with vendor | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge R450 | 15G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R470 | 17G | Certified | 9.1 | Certified (Microsoft catalog) Dell matrix note (9): Windows Server is not enabled on Intel Xeon 6 E-core (Sierra Forest) CPUs; support applies to Xeon 6 P-core (Granite Rapids) configurations | Certified (Microsoft catalog) |
| Dell PowerEdge R4715 | 17G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R530 | 13G | Not listed | 7.0 | Not listed | Not listed |
| Dell PowerEdge R540 | 14G | Confirm with vendor | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge R550 | 15G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R570 | 17G | Certified | 9.1 | Certified (Microsoft catalog) Dell matrix note (9): Windows Server is not enabled on Intel Xeon 6 E-core (Sierra Forest) CPUs; support applies to Xeon 6 P-core (Granite Rapids) configurations | Certified (Microsoft catalog) |
| Dell PowerEdge R5715 | 17G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R630 | 13G | Not listed | 7.0 | Not listed | Not listed |
| Dell PowerEdge R640 | 14G | Confirm with vendor | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge R6415 | 14G | Certified | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge R650 | 15G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R650xs | 15G | Certified | 9.1 | Sources disagree | Certified (Microsoft catalog) |
| Dell PowerEdge R6515 | 15G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R6525 | 15G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R660 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R660xs | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R6615 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R6625 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R670 | 17G | Certified | 9.1 | Certified (Microsoft catalog) Dell matrix note (9): Windows Server is not enabled on Intel Xeon 6 E-core (Sierra Forest) CPUs; support applies to Xeon 6 P-core (Granite Rapids) configurations | Certified (Microsoft catalog) |
| Dell PowerEdge R6715 | 17G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R6725 | 17G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R730 | 13G | Not listed | 7.0 | Not listed | Not listed |
| Dell PowerEdge R730xd | 13G | Not listed | 7.0 | Not listed | Not listed |
| Dell PowerEdge R740 | 14G | Confirm with vendor | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge R740xd | 14G | Confirm with vendor | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge R740xd2 | 14G | Confirm with vendor | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge R7415 | 14G | Not listed | 8.0 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge R7425 | 14G | Not listed | 8.0 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge R750 | 15G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R750xa | 15G | Certified | 9.1 | Sources disagree | Certified (Microsoft catalog) |
| Dell PowerEdge R750xs | 15G | Certified | 9.1 | Sources disagree | Certified (Microsoft catalog) |
| Dell PowerEdge R7515 | 15G | Certified | 9.1 | Sources disagree | Certified (Microsoft catalog) |
| Dell PowerEdge R7525 | 15G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R760 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R760XD2 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R760xa | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R760xs | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R7615 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R7625 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R770 | 17G | Certified | 9.1 | Certified (Microsoft catalog) Dell matrix note (9): Windows Server is not enabled on Intel Xeon 6 E-core (Sierra Forest) CPUs; support applies to Xeon 6 P-core (Granite Rapids) configurations | Certified (Microsoft catalog) |
| Dell PowerEdge R7715 | 17G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R7725 | 17G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R7725XD | 17G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R830 | 13G | Not listed | 7.0 | Not listed | Not listed |
| Dell PowerEdge R840 | 14G | Confirm with vendor | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge R860 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge R930 | 13G | Not listed | 7.0 | Not listed | Not listed |
| Dell PowerEdge R940 | 14G | Confirm with vendor | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge R940xa | 14G | Confirm with vendor | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge R960 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge T140 | 14G | Certified | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge T150 | 15G | Certified | 9.1 | Not supported | Certified (Microsoft catalog) |
| Dell PowerEdge T160 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge T340 | 14G | Certified | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge T350 | 15G | Certified | 9.1 | Not supported | Certified (Microsoft catalog) |
| Dell PowerEdge T360 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge T440 | 14G | Confirm with vendor | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge T550 | 15G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge T560 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge T630 | 13G | Not listed | 7.0 | Not listed | Not listed |
| Dell PowerEdge T640 | 14G | Confirm with vendor | 9.1 | Not listed | Certified (Microsoft catalog) |
| Dell PowerEdge XE7740 | 17G | Certified | 9.1 | Not listed | Not listed |
| Dell PowerEdge XE7745 | 17G | Certified | 9.1 | Certified (Microsoft catalog) | Not listed |
| Dell PowerEdge XE8640 | 16G | Certified | 9.1 | Not listed | Not listed |
| Dell PowerEdge XE9640 | 16G | Certified | 9.1 | Not listed | Not listed |
| Dell PowerEdge XE9680 | 16G | Certified | 9.1 | Not listed | Not listed |
| Dell PowerEdge XR11 | 15G | Certified | 9.1 | Sources disagree | Certified (Microsoft catalog) |
| Dell PowerEdge XR12 | 15G | Certified | 9.1 | Sources disagree | Certified (Microsoft catalog) |
| Dell PowerEdge XR2 | 14G | Confirm with vendor | 9.1 | Not listed | Not supported |
| Dell PowerEdge XR4000w | 15G | Not listed | 8.0 | Not listed | Not listed |
| Dell PowerEdge XR4510C | 15G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge XR4520C | 15G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge XR5610 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge XR7620 | 16G | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Dell PowerEdge XR8610t | 16G | Certified | 9.1 | Not listed | Not listed |
| Dell PowerEdge XR8620t | 16G | Certified | 9.1 | Not listed | Not listed |
| Dell XE7420 | 14G | Not listed | 7.0 | Not listed | Certified (Microsoft catalog) |
| Dell XE7440 | 14G | Not listed | 7.0 | Not listed | Certified (Microsoft catalog) |
| Dell XE8545 | 15G | Certified | 9.1 | Not listed | Certified (Microsoft catalog) |
| HPE Compute Scale-up Server 3200 | — | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE Synergy 480 Gen10 Compute Module | Gen10 | Certified | 9.1 | Certified (Microsoft catalog) Broadcom’s guide CPU series for this model include 1st Gen Xeon SP (Skylake-SP, x1xx), which Microsoft's Windows Server 2025 processor list does not name. Microsoft’s catalog WS2025 submission tested: Intel Xeon Gold 5222 @ 3.80GHz. | Certified (Microsoft catalog) |
| HPE ProLiant DL325 Gen10 Plus | Gen10 Plus | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL160 Gen10 | Gen10 | Certified | 9.1 | Certified (Microsoft catalog) Broadcom’s guide CPU series for this model include 1st Gen Xeon SP (Skylake-SP, x1xx), which Microsoft's Windows Server 2025 processor list does not name. Microsoft’s catalog WS2025 submission tested: Intel Xeon Platinum 8256 @ 3.80GHz. | Certified (Microsoft catalog) |
| HPE ProLiant DL360 Gen10 | Gen10 | Certified | 9.1 | Certified (Microsoft catalog) Broadcom’s guide CPU series for this model include 1st Gen Xeon SP (Skylake-SP, x1xx), which Microsoft's Windows Server 2025 processor list does not name. Microsoft’s catalog WS2025 submission tested: Intel Xeon Gold 6250L @ 3.90GHz. | Certified (Microsoft catalog) |
| HPE Synergy 660 Gen10 Compute Module | Gen10 | Certified | 9.1 | Certified (Microsoft catalog) Broadcom’s guide CPU series for this model include 1st Gen Xeon SP (Skylake-SP, x1xx), which Microsoft's Windows Server 2025 processor list does not name. Microsoft’s catalog WS2025 submission tested: Intel Xeon Gold 5222 @ 3.80GHz. | Certified (Microsoft catalog) |
| HPE ProLiant XL675d Gen10 Plus | Gen10 Plus | Certified | 9.1 | Not supported | Certified (Microsoft catalog) |
| HPE Superdome Flex 280 | — | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL345 Gen10 Plus | Gen10 Plus | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE Synergy 480 Gen10 Plus Compute Module | Gen10 Plus | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL360 Gen10 Plus | Gen10 Plus | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant ML30 Gen10 | Gen10 | Certified | 9.1 | Not supported | Certified (Microsoft catalog) |
| HPE Edgeline e920d | — | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL110 Gen11 | Gen11 | Certified | 9.1 | Not listed | Not listed |
| HPE Alletra Storage Server 4110 | — | Certified | 9.1 | Certified (Microsoft catalog) Xeon CPU Max 9400 configurations excluded: Broadcom’s guide lists Max 9400 for this model; HPE's Windows matrix states (on its DL360/DL380/DL380a Gen11 rows) that "Intel Xeon CPU Max Series processors are not supported by Microsoft for Windows Server"; this model's own row carries no such note. | Certified (Microsoft catalog) |
| HPE ProLiant DL320 Gen11 | Gen11 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL380 Gen11 | Gen11 | Certified | 9.1 | Certified (Microsoft catalog) Xeon CPU Max 9400 configurations excluded: this model's HPE matrix row notes "Intel Xeon CPU Max Series processors are not supported by Microsoft for Windows Server". | Certified (Microsoft catalog) |
| HPE ProLiant Compute DL320 Gen12 | Gen12 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE Synergy 480 Gen10 Plus w/8S PCIe Exp Mod | Gen10 Plus | Not listed | 7.0 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant XL420 Gen10 Plus | Gen10 Plus | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant XL270d Gen10 | Gen10 | Not listed | 7.0 | Not supported | Not supported |
| HPE ProLiant ML30 Gen10 Plus | Gen10 Plus | Certified | 9.1 | Certified (Microsoft catalog) Pentium G6405 configurations excluded: QuickSpecs offers Pentium G6405, which Microsoft's WS2025 list does not name (only Pentium G7400/G7400T); Microsoft’s catalog WS2025 tested Xeon E-2374G only. | Certified (Microsoft catalog) |
| HPE ProLiant DL110 Gen10 Plus | Gen10 Plus | Certified | 9.1 | Not supported | Certified (Microsoft catalog) |
| HPE ProLiant DL380 Gen10 | Gen10 | Certified | 9.1 | Certified (Microsoft catalog) Broadcom’s guide CPU series for this model include 1st Gen Xeon SP (Skylake-SP, x1xx), which Microsoft's Windows Server 2025 processor list does not name. Microsoft’s catalog WS2025 submission tested: Intel Xeon Gold 6250L @ 3.90GHz. | Certified (Microsoft catalog) |
| HPE ProLiant BL460c Gen10 | Gen10 | Not listed | 7.0 | Not supported | Not supported |
| HPE ProLiant XL225n Gen10 Plus | Gen10 Plus | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant WS460c Gen9 | Gen9 | Not listed | 7.0 | Not supported | Not supported |
| HPE ProLiant DL580 Gen10 | Gen10 | Certified | 9.1 | Certified (Microsoft catalog) Broadcom’s guide CPU series for this model include 1st Gen Xeon SP (Skylake-SP, x1xx), which Microsoft's Windows Server 2025 processor list does not name. Microsoft’s catalog WS2025 submission tested: Intel Xeon Platinum 8268 @ 2.90GHz. | Certified (Microsoft catalog) |
| HPE ProLiant ML110 Gen10 | Gen10 | Certified | 9.1 | Certified (Microsoft catalog) Broadcom’s guide CPU series for this model include 1st Gen Xeon SP (Skylake-SP, x1xx), which Microsoft's Windows Server 2025 processor list does not name. Microsoft’s catalog WS2025 submission tested: Intel Xeon Gold 5222 @ 3.80GHz. | Certified (Microsoft catalog) |
| HPE Superdome Flex | — | Certified | 9.1 | Certified (Microsoft catalog) Broadcom’s guide CPU series for this model include 1st Gen Xeon SP (Skylake-SP, x1xx), which Microsoft's Windows Server 2025 processor list does not name. Microsoft’s catalog WS2025 submission tested: Intel Xeon Platinum 8280L @ 2.70GHz. | Certified (Microsoft catalog) |
| HPE Alletra Storage Server 4140 | — | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant Compute DL380a Gen12 | Gen12 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL360 Gen11 | Gen11 | Certified | 9.1 | Certified (Microsoft catalog) Xeon CPU Max 9400 configurations excluded: this model's HPE matrix row notes "Intel Xeon CPU Max Series processors are not supported by Microsoft for Windows Server". | Certified (Microsoft catalog) |
| HPE ProLiant ML350 Gen10 | Gen10 | Certified | 9.1 | Certified (Microsoft catalog) Broadcom’s guide CPU series for this model include 1st Gen Xeon SP (Skylake-SP, x1xx), which Microsoft's Windows Server 2025 processor list does not name. Microsoft’s catalog WS2025 submission tested: Intel Xeon Gold 6250L @ 3.90GHz. | Certified (Microsoft catalog) |
| HPE ProLiant ML110 Gen11 | Gen11 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE Cray XD220v | — | Certified | 9.1 | Not supported | Certified (Microsoft catalog) |
| HPE Synergy 480 Gen11 Compute Module | Gen11 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant XL290n Gen10 Plus | Gen10 Plus | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL560 Gen10 | Gen10 | Certified | 9.1 | Certified (Microsoft catalog) Broadcom’s guide CPU series for this model include 1st Gen Xeon SP (Skylake-SP, x1xx), which Microsoft's Windows Server 2025 processor list does not name. Microsoft’s catalog WS2025 submission tested: Intel Xeon Platinum 8268 @ 2.90GHz. | Certified (Microsoft catalog) |
| HPE ProLiant DL385 Gen10 | Gen10 | Certified | 9.1 | Not supported | Certified (Microsoft catalog) |
| HPE ProLiant ML350 Gen11 | Gen11 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL385 Gen11 | Gen11 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL380 Gen10 Plus | Gen10 Plus | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant m750 server blade | — | Not listed | 7.0 | Certified (Microsoft catalog) Broadcom’s guide CPU series for this model include Xeon E-2200 (8-core), which Microsoft's Windows Server 2025 processor list does not name. Microsoft’s catalog WS2025 submission tested: Intel Xeon E-2286M @ 2.40GHz. | Certified (Microsoft catalog) |
| HPE Alletra Storage Server 4120 | — | Certified | 9.1 | Certified (Microsoft catalog) Xeon CPU Max 9400 configurations excluded: Broadcom’s guide lists Max 9400 for this model; HPE's Windows matrix states (on its DL360/DL380/DL380a Gen11 rows) that "Intel Xeon CPU Max Series processors are not supported by Microsoft for Windows Server"; this model's own row carries no such note. | Certified (Microsoft catalog) |
| HPE ProLiant XL450 Gen10 | Gen10 | Certified | 9.1 | Certified (Microsoft catalog) Broadcom’s guide CPU series for this model include 1st Gen Xeon SP (Skylake-SP, x1xx), which Microsoft's Windows Server 2025 processor list does not name. Microsoft’s catalog WS2025 submission tested: Intel Xeon Gold 6234 @ 3.30GHz. | Certified (Microsoft catalog) |
| HPE ProLiant Compute DL325 Gen12 | Gen12 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL388 Gen10 | Gen10 | Certified | 9.1 | Not listed | Not listed |
| HPE Edgeline e920 | — | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL380a Gen11 | Gen11 | Certified | 9.1 | Certified (Microsoft catalog) Xeon CPU Max 9400 configurations excluded: this model's HPE matrix row notes "Intel Xeon CPU Max Series processors are not supported by Microsoft for Windows Server". | Certified (Microsoft catalog) |
| HPE ProLiant DL180 Gen10 | Gen10 | Certified | 9.1 | Certified (Microsoft catalog) Broadcom’s guide CPU series for this model include 1st Gen Xeon SP (Skylake-SP, x1xx), which Microsoft's Windows Server 2025 processor list does not name. Microsoft’s catalog WS2025 submission tested: Intel Xeon Platinum 8256 @ 3.80GHz. | Certified (Microsoft catalog) |
| HPE ProLiant DL20 Gen10 | Gen10 | Certified | 9.1 | Not supported | Not supported |
| HPE ProLiant BL460c Gen9 | Gen9 | Not listed | 7.0 | Not supported | Not supported |
| HPE ProLiant Compute DL340e Gen12 | Gen12 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant XL170r Gen10 | Gen10 | Not listed | 7.0 | Not supported | Not supported |
| HPE ProLiant DL325 Gen10 | Gen10 | Certified | 9.1 | Not supported | Certified (Microsoft catalog) |
| HPE ProLiant XL190r Gen10 | Gen10 | Not listed | 7.0 | Not supported | Not supported |
| HPE ProLiant Compute DL580 Gen12 | Gen12 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant MicroServer Gen11 | Gen11 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant BL660c Gen9 | Gen9 | Not listed | 7.0 | Not supported | Not supported |
| HPE ProLiant Compute XD230 | — | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL385 Gen10 Plus | Gen10 Plus | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE Cray XD295v | — | Certified | 9.1 | Certified (Microsoft catalog) AMD EPYC 9004 configurations excluded: HPE row note says WS2025 is certified/supported "only when configured with AMD EPYC 9005 Series processors" (Microsoft’s catalog WS2025 tested EPYC 9175F). Microsoft's own WS2025 list does include EPYC 9xx4, so this is an HPE restriction. | Certified (Microsoft catalog) |
| HPE ProLiant DL325 Gen11 | Gen11 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE Alletra Storage Server 4210 | — | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE Cray XD670 | — | Certified | 9.1 | Not listed | Not listed |
| HPE ProLiant XL420 Gen10 | Gen10 | Certified | 9.1 | Certified (Microsoft catalog) Broadcom’s guide CPU series for this model include 1st Gen Xeon SP (Skylake-SP, x1xx), which Microsoft's Windows Server 2025 processor list does not name. Microsoft’s catalog WS2025 submission tested: Intel Xeon Gold 6234 @ 3.30GHz. | Certified (Microsoft catalog) |
| HPE ProLiant XL645d Gen10 Plus | Gen10 Plus | Certified | 9.1 | Not supported | Certified (Microsoft catalog) |
| HPE ProLiant Compute DL360 Gen12 | Gen12 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL560 Gen11 | Gen11 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL385 Gen10 Plus v2 | Gen10 Plus v2 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE Synergy 480 Gen9 | Gen9 | Not listed | 7.0 | Not supported | Not supported |
| HPE ProLiant XL220n Gen10 Plus | Gen10 Plus | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE Synergy 680 Gen9 | Gen9 | Not listed | 7.0 | Not supported | Not supported |
| HPE Edgeline e920t | — | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant MicroServer Gen10 Plus | Gen10 Plus | Not listed | 7.0 | Certified (Microsoft catalog) Broadcom’s guide CPU series for this model include Xeon E-2200 (4 or 6-core), Xeon E-2200 (8-core), which Microsoft's Windows Server 2025 processor list does not name. Microsoft’s catalog WS2025 submission tested: Intel Xeon E-2224 @ 3.40GHz. | Certified (Microsoft catalog) |
| HPE ProLiant e910t | — | Not listed | 7.0 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE Synergy 620 Gen9 | Gen9 | Not listed | 7.0 | Not supported | Not supported |
| HPE ProLiant DL365 Gen10 Plus | Gen10 Plus | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL345 Gen11 | Gen11 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant XL230k Gen10 | Gen10 | Not listed | 7.0 | Not supported | Not supported |
| HPE Cray XD225v | — | Certified | 9.1 | Certified (Microsoft catalog) AMD EPYC 9004 configurations excluded: HPE row note says WS2025 is certified/supported "only when configured with AMD EPYC 9005 Series processors" (Microsoft’s catalog WS2025 tested EPYC 9175F). Microsoft's own WS2025 list does include EPYC 9xx4, so this is an HPE restriction. | Certified (Microsoft catalog) |
| HPE ProLiant Compute DL340 Gen12 | Gen12 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL365 Gen11 | Gen11 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant e910 | — | Not listed | 7.0 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL580 Gen9 | Gen9 | Not listed | 7.0 | Not supported | Not supported |
| HPE ProLiant Compute DL345 Gen12 | Gen12 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL360 Gen9 | Gen9 | Not listed | 7.0 | Not supported | Not supported |
| HPE ProLiant DL145 Gen11 | Gen11 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant m710x | — | Not listed | 7.0 | Not supported | Not supported |
| HPE Synergy 480 Gen12 Compute Module | Gen12 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE Proliant DL560 Gen9 | Gen9 | Not listed | 7.0 | Not supported | Not supported |
| HPE ProLiant DL20 Gen10 Plus | Gen10 Plus | Certified | 9.1 | Certified (Microsoft catalog) Pentium G6405 configurations excluded: QuickSpecs offers Pentium G6405, which Microsoft's WS2025 list does not name (only Pentium G7400/G7400T); Microsoft’s catalog WS2025 tested Xeon E-2374G only. | Certified (Microsoft catalog) |
| HPE ProLiant DL380 Gen9 | Gen9 | Not listed | 7.0 | Not supported | Not supported |
| HPE ProLiant ML30 Gen11 | Gen11 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant m510 | — | Not listed | 7.0 | Not supported | Not supported |
| HPE Edgeline e930t | — | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant m710x-L | — | Not listed | 7.0 | Not supported | Not supported |
| HPE Synergy 660 Gen9 | Gen9 | Not listed | 7.0 | Not supported | Not supported |
| HPE ProLiant Compute ML350 Gen12 | Gen12 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL20 Gen11 | Gen11 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant Compute DL380 Gen12 | Gen12 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant DL325 Gen10 Plus v2 | Gen10 Plus v2 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| HPE ProLiant MicroServer Gen10 Plus v2 | Gen10 Plus v2 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Lenovo Flex System x240 M5 | System x M5 | Not listed | 7.0 | Not supported | Not supported |
| Lenovo System x3250 M5 | System x M5 | Not listed | 7.0 | Not supported | Not supported |
| Lenovo System x3250 M6 | System x M6 | Not listed | 7.0 | Not supported | Not supported |
| Lenovo System x3550 M5 | System x M5 | Not listed | 7.0 | Not supported | Not supported |
| Lenovo System x3650 M5 | System x M5 | Not listed | 7.0 | Not supported | Not supported |
| Lenovo System x3850 X6 | System x X6 | Not listed | 7.0 | Not supported | Not supported |
| Lenovo System x3950 X6 | System x X6 | Not listed | 7.0 | Not supported | Not supported |
| Lenovo ThinkServer RS160 | ThinkServer | Not listed | 7.0 | Not supported | Not supported |
| Lenovo ThinkServer RS240 | ThinkServer | Not listed | 7.0 | Not listed | Not listed |
| Lenovo ThinkServer RS260 | ThinkServer | Not listed | 7.0 | Not listed | Not listed |
| Lenovo ThinkServer TS140 | ThinkServer | Not listed | 7.0 | Not supported | Not supported |
| Lenovo ThinkServer TS150 | ThinkServer | Not listed | 7.0 | Not supported | Not supported |
| Lenovo ThinkServer TS250 | ThinkServer | Not listed | 7.0 | Not listed | Not listed |
| Lenovo ThinkServer TS450 | ThinkServer | Not listed | 7.0 | Not supported | Not supported |
| Lenovo ThinkServer TS460 | ThinkServer | Not listed | 7.0 | Not supported | Not supported |
| Lenovo ThinkServer TS540 | ThinkServer | Not listed | 7.0 | Not listed | Not listed |
| Lenovo ThinkServer TS560 | ThinkServer | Not listed | 7.0 | Not listed | Not listed |
| Lenovo ThinkSystem SN850 | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR 860 V2 | ThinkSystem V2 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR150 | ThinkSystem V1 | Not listed | 8.0 | Not supported | Not supported |
| Lenovo ThinkSystem SR158 | ThinkSystem V1 | Not listed | 8.0 | Not supported | Not supported |
| Lenovo ThinkSystem SR250 | ThinkSystem V1 | Not listed | 8.0 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR258 | ThinkSystem V1 | Not listed | 8.0 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem ST250 | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem ST258 | ThinkSystem V1 | Not listed | 8.0 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem ST50 | ThinkSystem V1 | Not listed | 8.0 | Not supported | Not supported |
| Lenovo ThinkSystem ST58 | ThinkSystem V1 | Not listed | 8.0 | Not supported | Not supported |
| Lenovo WenTian WA5480 G3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo WenTian WA5480 G5 | ThinkSystem V4 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo WenTian WA5680 G5 | ThinkSystem V4 | Certified | 9.1 | Supported (maker’s matrix) | Certified (Microsoft catalog) |
| Lenovo WenTian WR3220 G2 | ThinkSystem V2 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo WenTian WR3220 G3 | ThinkSystem V3 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Lenovo WenTian WR3220 G5 | ThinkSystem V4 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo WenTian WR3228 G2 | ThinkSystem V2 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo WenTian WR5215 G5 | — | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Lenovo WenTian WR5220 G3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo WenTian WR5220 G5 | ThinkSystem V4 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo WenTian WR5225 G3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkEdge SE30 | ThinkSystem V1 | Not listed | 8.0 | Not listed | Not listed |
| Lenovo ThinkEdge SE350 V2 | ThinkSystem V2 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkEdge SE360 V2 | ThinkSystem V2 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkEdge SE450 | ThinkSystem V2 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkEdge SE455 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkServer DN8848 V2 | ThinkSystem V2 | Certified | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkServer SE550 V2 | ThinkSystem V2 | Certified | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkServer SR588 V2 | ThinkSystem V2 | Certified | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkServer SR590 | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkServer SR590 V2 | ThinkSystem V2 | Certified | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkServer SR660 | ThinkSystem V1 | Not listed | 7.0 | Not listed | Not listed |
| Lenovo ThinkServer SR660 V2 | ThinkSystem V2 | Certified | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkServer SR668 V2 | ThinkSystem V2 | Certified | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkServer SR860P | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem HR630X V2 | ThinkSystem V2 | Not listed | 7.0 | Not listed | Not listed |
| Lenovo ThinkSystem SC750 V4 | ThinkSystem V4 | Certified | 9.1 | Not supported | Not supported |
| Lenovo ThinkSystem SD530 | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SD530 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SD535 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SD550 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SD630 V2 | ThinkSystem V2 | Certified | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SE350 | ThinkSystem V1 | Not listed | 8.0 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SN550 | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SN550 V2 | ThinkSystem V2 | Certified | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR250 V2 | ThinkSystem V2 | Certified | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR250 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR258 V2 | ThinkSystem V2 | Certified | 9.1 | Not listed | Not listed |
| Lenovo ThinkSystem SR258 V3 | ThinkSystem V3 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Lenovo ThinkSystem SR530 | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR550 | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR570 | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR590 | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR630 | ThinkSystem V1 | Confirm with vendor | 9.1 | Certified (Microsoft catalog) OSIG: Xeon SP Gen 1 (Skylake) not supported for WS2025; SP Gen 2 (Cascade Lake) 'Tested' only; the Windows Server Catalog certification was tested with Xeon Platinum 8280L | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR630 V2 | ThinkSystem V2 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR630 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR630 V4 | ThinkSystem V4 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR635 | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR635 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR645 | ThinkSystem V1 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR645 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR650 | ThinkSystem V1 | Confirm with vendor | 9.1 | Certified (Microsoft catalog) OSIG: Xeon SP Gen 1 (Skylake) not supported for WS2025; SP Gen 2 (Cascade Lake) 'Tested' only; the Windows Server Catalog certification was tested with Xeon Platinum 8280L | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR650 V2 | ThinkSystem V2 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR650 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR650 V4 | ThinkSystem V4 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR650a V4 | ThinkSystem V4 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR655 | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR655 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR665 | ThinkSystem V1 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR665 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR670 | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR670 V2 | ThinkSystem V2 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR675 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR680a V3 | ThinkSystem V3 | Certified | 9.1 | Not supported | Not supported |
| Lenovo ThinkSystem SR680a V4 | ThinkSystem V4 | Certified | 9.1 | Not supported | Not supported |
| Lenovo ThinkSystem SR780a V3 | ThinkSystem V3 | Certified | 9.1 | Not supported | Not supported |
| Lenovo ThinkSystem SR850 | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR850 V2 | ThinkSystem V2 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR850 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR850 V4 | ThinkSystem V4 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR850P | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR860 | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR860 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR860 V4 | ThinkSystem V4 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR950 | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem SR950 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem ST250 V2 | ThinkSystem V2 | Certified | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem ST250 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem ST258 V2 | ThinkSystem V2 | Certified | 9.1 | Not listed | Not listed |
| Lenovo ThinkSystem ST258 V3 | ThinkSystem V3 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Lenovo ThinkSystem ST50 V2 | ThinkSystem V2 | Certified | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem ST50 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem ST550 | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem ST558 | ThinkSystem V1 | Confirm with vendor | 9.1 | Not supported | Supported (maker’s matrix) |
| Lenovo ThinkSystem ST58 V2 | ThinkSystem V2 | Certified | 9.1 | Not listed | Certified (Microsoft catalog) |
| Lenovo ThinkSystem ST58 V3 | ThinkSystem V3 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
| Lenovo ThinkSystem ST650 V2 | ThinkSystem V2 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem ST650 V3 | ThinkSystem V3 | Certified | 9.1 | Supported (maker’s matrix) | Supported (maker’s matrix) |
| Lenovo ThinkSystem ST658 V3 | ThinkSystem V3 | Certified | 9.1 | Certified (Microsoft catalog) | Certified (Microsoft catalog) |
Windows Server status links to its source. For a verdict on a specific processor and configuration, use the ESXi & Windows Server compatibility checker.
For planning
What this means for upgrade plans
- Dates to plan around: Windows Server 2022 leaves mainstream support on 13 October 2026 (Microsoft). ESXi 8.0 reaches end of general support on 11 October 2027, and VCF / ESX 9.0 on 12 November 2027 (Broadcom).
- 2021–22 servers: most can move to ESXi 9, but check Windows Server 2025 model by model; fewer than half of Dell 15G and Lenovo V2 models are listed.
- 2017–20 servers on “confirm with vendor”: VMware will support the software, but hardware and firmware issues go to the maker, which hasn’t certified the combination. Get the maker’s position in writing before relying on it in production.
- Older servers: nothing launched before 2017 in this study is listed for either platform. See the server end-of-life checker for support dates.
Method
How the dataset was built
How these figures were produced
- ESXi: every Dell, HPE and Lenovo server listing in the Broadcom Compatibility Guide (server program), fetched 2026-09-14, with each listing's releases and its "VCF Supported. Confirm w/Vendor" field. A model counts as ESXi 9 certified when at least one ESXi 9.0 or 9.1 listing is not flagged.
- Windows Server: Dell's Windows Server OS support matrix for PowerEdge, HPE's Windows Server support matrix, Lenovo's OS Interoperability Guide (OSIG) export, and a full pull of Dell, HPE and Lenovo products in Microsoft's Windows Server Catalog, including the hardware each Windows Server 2025 submission was tested on.
- Status: "certified" means a Windows Server Catalog certification for that model; "supported" means the maker's matrix lists it without a catalog certification; "sources disagree" means the maker's own documents conflict. Where a maker does not list a model at all, it is "not listed", not "not supported".
- Models: listings were matched to one row per product (duplicates merged, keeping the best-sourced status) and grouped into the makers' own generations. vSAN ReadyNode, HCI and other appliance listings are classed separately.
- Checks: an independent verifier re-checked every server row against the live sources (ESXi listing and Windows Server 2025 status matched on all rows), opened Broadcom detail pages in a browser to confirm the confirm-with-vendor flag, and flagged conflicts, which are reported above. The published figures are recomputed from the CSV by a separate script before release.
- Limits: listings change. This is a snapshot from September 2026, and a listing covers the tested configuration, not every option a server can be ordered with.
Sources: Broadcom Compatibility Guide (server program) · Windows Server Catalog · Dell Windows Server OS support matrix for PowerEdge servers (Dec 2025) · HPE Windows Server support matrix · Lenovo OS Interoperability Guide (OSIG) · Broadcom KB 428874. This analysis is free to reuse under CC BY 4.0, crediting “Servnet Windows Server 2025 and ESXi 9 Server Support Study 2026”. Downloads: CSV · JSON.
FAQ
Questions
Which servers support Windows Server 2025?
Of the 334 Dell, HPE and Lenovo server models in this study, 172 (51.5%) are certified in Microsoft's Windows Server Catalog or listed as supported in the maker's own Windows Server matrix. Support is near-complete for the current generation (Dell 16G/17G, HPE Gen11/Gen12, Lenovo V3/V4) and patchy for the 2021–22 generation: 39 of 72 models. No model launched before 2017 in this study is listed.
Which servers are supported by VMware ESXi 9?
259 of 334 models (78%) appear in the Broadcom Compatibility Guide for ESXi 9.0 or 9.1. 40 of those listings carry Broadcom's "VCF Supported. Confirm w/Vendor" flag, which Broadcom's KB 428874 uses for systems the server maker did not submit for certification. Counting only maker-certified listings, the figure is 219 (65.6%).
Does the Dell PowerEdge R740 support Windows Server 2025 or ESXi 9?
Dell's sources disagree. Dell's Windows Server support matrix has no Windows Server 2025 column for 14th-generation servers and Dell's R740 support page stops at Windows Server 2022, yet the R640/R740 BIOS 2.22.2 release notes mention Windows Server 2025 support, and Microsoft's catalog lists Dell's AX-640 and AX-740XD (R640 and R740xd hardware) as certified for Windows Server 2025. For ESXi 9, the R740 appears in Broadcom's guide only as "confirm with vendor", and Dell's own ESXi 9.x matrix starts at 15th generation. Check with Dell before planning either upgrade.
What does "VCF Supported. Confirm w/Vendor" mean?
It is a flag in the Broadcom Compatibility Guide. Broadcom KB 428874 explains that VMware supports its software on these systems but the server maker did not submit them for ESXi 9 certification, so hardware, BIOS and firmware support is the maker's decision. In this study those listings are counted separately from maker-certified ones.
Is a listing a guarantee that my server will work?
No. Support also depends on the processor, firmware, storage controller, network adapters and BIOS version. Some models are listed only for certain processors (the dataset notes these). Use the listing to shortlist, then check the exact configuration against the maker's documentation.
Can I reuse this data?
Yes. The dataset and analysis are free to reuse under CC BY 4.0, crediting "Servnet Windows Server 2025 and ESXi 9 Server Support Study 2026". The CSV and JSON downloads are linked in the method section.
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