Microsoft has resolved a known issue causing installation failures and 0x800f0922 errors when deploying the May 2026 Windows 11 security update (KB5089549). As Microsoft explained when it acknowledged ...
Microsoft has resolved Windows 11 KB5089549 install failures tied to low EFI partition space through KB5089573, which also brings a ton of other improvements.
Update KB5089573 is optional because it’s a preview update. You must therefore install it manually via Windows Update → Advanced options → Optional updates, or ...