Windows 11’s September update is borked, won’t install for some users

Windows 11 update KB5065426 won't install for some users due to error codes 0x800F0991, 0x800F0922, 0x80071A2D, 0x800F081F, ...
Windows Report

Windows 11 September update KB5065426 reportedly won't install for some users

Windows 11 September KB5065426 update is not installing with multiple error codes, leaving some September 2025 updates stuck.

Windows 11 upgrade failed? These are my 4 most powerful troubleshooting secrets

If you've encountered a problem with a Windows upgrade, you know how maddeningly unhelpful Windows error messages can be. These are my favorite troubleshooting tricks.

Can’t boot into Windows after installing Fedora

If you cannot boot into Windows after installing Fedora, identify the BOOT mode, update GRUB configuration and enable OS ...

Windows 11 gets plenty of fixes in Canary build 27950 Windows 11 gets plenty of fixes in Canary build 27950 Windows 11 gets plenty of fixes in Canary build 27950 0 0

Microsoft is rolling out the new Canary build 27950 for Windows 11 Insiders to fix installation issues and other bugs.