Windows 11 build 21990

Windows 11 build 21990 is an unleaked build of Windows 11. A screenshot of this build was posted on the "Inside Windows" Telegram by Zac Bowden, showing the search bar with "Windows Security" highlighted as an option. A video was uploaded to the betawiki discord server on 28 December, 2021. It was also mentioned along with build 22117 in a Feedback Hub guide video posted by the Windows Insider Program channel on YouTube.