Windows 11 May 2026 update fails on some PCs, but Microsoft has already shipped a workaround, and it's working on a permanent fix.
Microsoft confirms Windows 11 update is failing at 35% on some PCs, releases a fix, and publishes a workaround.
Microsoft confirmed that KB5089549 can fail with error 0x800f0922 on Windows 11 devices with low EFI partition space, and shared workarounds are available.
Windows 11 update KB5089549 is reportedly failing to install for some users, while others say the May 2026 update slows internet speeds.