Microsoft confirms Windows 11 security update install issues
Source: Bleepingcomputer
Published:
<p>Microsoft has confirmed that the May 2026 Windows 11 security update ( KB5089549 ) fails to install on some systems and triggers 0x800f0922 errors.</p> <p>This known issue is caused by insufficient free space on the EFI System Partition (ESP), which results in the update automatically rolling bac