Windows 11 build 21990

Build of Windows 11
OS familyWindows 11 (NT 10.0)
Version number10.0
Build number21990
Build revision1
Build labco_release
Compiled on2021-05-23

Windows 11 build 21990 is an unleaked build of Windows 11. A screenshot of this build was initially posted on the "Inside Windows" Telegram by Zac Bowden,[1] showing the search bar with "Windows Security" highlighted as an option; the screenshot originated from a video that was uploaded to Microsoft servers on 22 December 2021 and later found online.[2] The watermark suggests that the build is production-signed and lacks a timebomb in its product policies.

This build was also mentioned along with build 22117 in a Feedback Hub guide video posted by the Windows Insider Program channel on YouTube.[3]