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 ...

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

Microsoft’s May security update KB5089549 is failing to install on some Windows 11 machines. Microsoft has now acknowledged ...
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 ...
Windows Latest

Microsoft confirms Windows 11 KB5089549 issues due to low storage, says it’s rolling out an emergency patch to fix install errors

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

Microsoft explains how to fix Windows 11 24H2 0xc1900101 by trying again or trying harder

Many users are seeing the "0xc1900101" error code when trying to upgrade to Windows 11 24H2 or those testing it. Microsoft has explained how to fix it..sort of. A few ...

Windows Update: Installation may fail due to insufficient EFI space

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