kb5089549 error

  1. Windows 11 KB5089549 Fails (0x800f0922): Fix ESP Free Space & Rollback

    Microsoft confirmed in mid-May 2026 that Windows 11 cumulative update KB5089549 can fail during installation on version 24H2 and 25H2 PCs when the EFI System Partition has roughly 10 MB or less free space, producing error 0x800f0922 and rolling back the security update. The company has pushed a...
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    • efi system partition kb5089549 error known issue rollback windows 11 update
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    • Forum: Windows News