KB5089549
Coverage of KB5089549 in the Nexus archive.
- Microsoft fixes KB5089549 Windows security update install issues
Microsoft has resolved a known issue causing installation failures and 0x800f0922 errors during deployment of the May 2026 Windows 11 security update (KB5089549).
- Microsoft confirms Windows 11 security update install issues
Microsoft has confirmed installation issues with the May 2026 Windows 11 security update, which fails to install on some systems and triggers errors. The update is identified as KB5089549 and specifically causes 0x800f0922 errors. This issue affects the stability and security of the operating system.
- Windows 11 KB5089549 & KB5087420 cumulative updates released
Microsoft has released Windows 11 cumulative updates KB5089549 and KB5087420 to fix security vulnerabilities and bugs, and add new features for versions 25H2, 24H2, and 23H2. The updates aim to improve the overall stability and security of the operating system. These updates are part of Microsoft's ongoing effort to maintain and enhance Windows 11.