Windows 11 update KB5089549 causes installation errors due to low EFI partition space
Source: Scworld
Published:
<p>Per Bleeping Computer, Microsoft has confirmed that the May 2026 Windows 11 security update, identified as KB5089549, is failing to install on certain systems and is triggering 0x800f0922 errors. This known issue is specifically linked to insufficient free space on the EFI System Partition (ESP).