Windows 11 KB5074109 (January 2026 Update) is causing major issues on some PCs, and Microsoft has more details to share.

Round and round we go.

Microsoft is investigating reports that some Windows 11 devices are failing to boot with "UNMOUNTABLE_BOOT_VOLUME" errors ...

Some machines are failing to start after security updates, prompting yet another Microsoft investigation Microsoft is ...

Here's a warning for those who are running Windows 11 on an ancient PC with a processor that isn't officially supported by Microsoft's operating system - you'll soon be unable to use the OS. It won't ...

Microsoft is aware of an alleged issue that leaves PCs unable to boot and requires manual recovery after Windows 11 January ...

First, try turning on your computer by disconnecting all unnecessary devices. If this works, open the Device Manager after logging into your system and check the ...

If you are stuck and can’t boot into Windows after installing Arch, and instead of seeing the Windows Boot Manager, you see GRUB showing Arch, here’s what you can do. First, you will need to check if ...

Windows 11 shutdown bug explained with causes, fixes, and workarounds to stop restarts, battery drain, and failed power-offs after updates.