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 ...

Windows 11 users are warned that backups are broken across multiple third-party applications after another Microsoft security update brings unexpected consequences.

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 has released Windows 11 KB5094126 and KB5093998 cumulative updates for versions 25H2/24H2 and 23H2 to fix security ...

Microsoft has fixed the Windows 11 KB5089549 install error 0x800f0922 through KB5089573 for 24H2 and 25H2 PCs.

Microsoft confirmed that KB5089549 can fail with error 0x800f0922 on Windows 11 devices with low EFI partition space, and shared workarounds are available.