Windows 11 May 2026 update failing with error 0x800f0922: Microsoft outlines fix

Windows 11 May 2026 update fails on some PCs, but Microsoft has already shipped a workaround, and it's working on a permanent fix.

Microsoft’s May update is failing to install on some Windows 11 PCs

Windows 11 update KB5089549 fails with error 0x800f0922 on some PCs with limited EFI partition space. Here's a workaround you ...

Microsoft May security patch fails for some due to boot partition size glitch

Consultants see the problem eating away at valuable patch resources because of a lack of Microsoft update hygiene.
Windows Report

Microsoft Confirms KB5089549 Fails to Install With 0x800f0922 Error, Shares Temporary Fixes

Microsoft has confirmed a new Windows 11 KB5089549 install issue causing rollback errors on devices with low EFI partition ...

Microsoft confirms Windows 11 security update install issues

Microsoft has confirmed that the May 2026 Windows 11 security update (KB5089549) fails to install on some systems and ...