Windows 10 build 21345

Build of Cobalt
OS familyWindows 11 (NT 10.0)
Version number10.0
Build number21345
Build labrs_prerelease
Compiled on2021-03-23

Windows 10 build 21345 is a build of Cobalt, the 21H2 development semester of Windows as a service. A screenshot of this build was posted to GitHub by a Microsoft employee on 1 April 2021.[1]

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