Windows 11 January 2026 updates may cause boot failures on some PCs. Microsoft is investigating issues linked to KB5074109.
The Register on MSN
Microsoft probes Windows 11 boot failures tied to January security updates
Some machines are failing to start after security updates, prompting yet another Microsoft investigation Microsoft is ...
Microsoft is investigating reports that some Windows 11 devices are failing to boot with "UNMOUNTABLE_BOOT_VOLUME" errors ...
How-To Geek on MSN
Windows 11 update disaster? 3 fixes to try before reinstalling
Most users jump straight to a clean install when Windows starts boot looping. Here is why you should try these rollbacks and ...
Windows 11 KB5074109 is wreaking havoc thanks to several issues, with the most serious keeping users out of the operating ...
Windows 11 had a rough 2025. We tracked the top 20 Windows 11 issues reported by Windows Latest, from failed updates to ...
Windows 11 KB5074109 is causing crashes, reboots, black screens, and BSOD errors for some users, but workaround is available.
Struggling with a corrupted GPT bootloader in Windows 11? Discover step-by-step methods to repair it quickly and get your PC ...
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In confirmed cases, Windows 11 boot failure occurs post-update, with the machine stuck at a black screen and unable to ...
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