Windows 10 build 21331

Build of Cobalt
OS familyWindows 10 (NT 10.0)
Version number10.0
Build number21331
Build revision1000
Architecturex64, ARM64
Build labrs_prerelease
Compiled on2021-03-05

Windows 10 build 21331 is a build of Cobalt, the 21H2 development semester of Windows as a service. An issue related to this build was posted to GitHub by a Microsoft employee on 9 March 2021.[1] An image of computers upgrading to the same build was later posted by Windows Insider Program lead Amanda Langwoski on the following day.[2]

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