Windows Server 2025 build 25921

10.0.25921.1000.rs_prerelease.230728-1521
Build of Windows Server 2025
Screenshot
OS familyWindows 11 (NT 10.0)
Version number10.0
Build number25921
Build revision1000
ArchitectureAMD64
Build labrs_prerelease
Compiled on2023-07-28
Expiration date
Timebomb2023-09-15 (+49 days)
About dialog
WindowsServer25921-winver.png
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Windows Server 2025 build 25921 is the earliest available Insider Preview build of Windows Server 2025 in the development semester of Gallium. It was released to Windows Insiders on 4 August 2023, along with its client counterpart. Due to its earliness, this build identifies itself as Windows Server 2022 in many areas.

Editions and keys[edit | edit source]

Edition / SKU Key
Standard Server MFY9F-XBN2F-TYFMP-CCV49-RMYVH
Datacenter Server 2KNJJ-33Y9H-2GXGX-KMQWH-G6H67
Datacenter Azure Edition N3FPV-KQP4R-4M6H6-7Q8TK-HYMDX

New features and changes[edit | edit source]

  • The Windows Terminal app has been included as an inbox app.
  • The Enhanced Log service has been implemented to Storage Replica.
  • This build reverts to the previous placeholder "Windows Server" branding in winver, but still retains the references to Windows Server 2022. It notably has a copyright symbol (©) instead of a registered trademark one (®).

Bugs and quirks[edit | edit source]

Archiving eventlogs with wevtutil al command may cause the Windows Event Log service to crash, and the archive operation to fail.

Gallery[edit | edit source]

External links[edit | edit source]