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

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

Microsoft confirmed that it's aware of an issue where Windows 11 KB5089549 fails to install due to errors such as 0x800f0922.

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

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

Windows security updates from May are failing on some systems. The cause is insufficient space on the EFI partition.