Windows 11 KB5074109 (January 2026 Update) is causing major issues on some PCs, and Microsoft has more details to share.
Windows 11 January 2026 updates may cause boot failures on some PCs. Microsoft is investigating issues linked to KB5074109.
Microsoft is investigating reports that some Windows 11 devices are failing to boot with "UNMOUNTABLE_BOOT_VOLUME" errors ...
XDA Developers on MSN
There's a secret computer inside your computer
There's a surprising amount of code running before the OS even loads.
If your Windows 11/10 computer won’t boot with a second hard drive plugged in, then first make sure the drive is working properly and there are no issues with it. Having done that, try these ...
There may be times when booting into Windows via Boot Camp may not display the desired screen resolution. In some instances this might happen after attempting to customize the hardware or driver ...
Troubleshooting a problem computer requires patience, know-how, and a lot of trial and error. Booting your PC in a clean configuration can help automate the process ...
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