Microsoft Windows Server v21H1, 10.0.19551.1001

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General information
File format
  • DVD
  • Virtual Hard Disk (.VHD(X))
Bootable Yes
Architecture x64
Language
  • Chinese Simplified
  • Chinese Traditional
  • Czech
  • Dutch
  • English
  • French
  • German
  • Hungarian
  • Italian
  • Japanese
  • Korean
  • Polish
  • Portuguese Brazil
  • Portuguese Portugal
  • Russian
  • Spanish
  • Swedish
  • Turkish
SKU
  • Datacenter Server Core
  • Standard Server Core

Install information
Full buildtag 10.0.19551.1001 (rs_prerelease.200118-2023)
BIOS date 19/01/2020
Timebomb 31/07/2020 (+194 days)
Product Key Standard: V6N4W-86M3X-J77X3-JF6XW-D9PRV
Datacenter: B69WH-PRNHK-BXVK3-P9XF7-XD84W

Notes

Release Information
This build was released to users of the Insider Program on 28/01/2020.
Official announcement: https://blogs.windows.com/windowsexperience/2020/01/28/announcing-windows-server-vnext-insider-preview-build-19551/