Windows 11 January 2026 updates may cause boot failures on some PCs. Microsoft is investigating issues linked to KB5074109.
Tom's Hardware on MSN
Some PCs can't boot after latest Windows 11 security update, no fix in sight — mostly affects 24H2 and 25H2 versions
A Windows security update bug has prevented some Windows 11 24H2 and 25H2 users from booting into their PCs, requiring them ...
Microsoft is investigating reports that some Windows 11 devices are failing to boot with "UNMOUNTABLE_BOOT_VOLUME" errors ...
Frustrated with Windows 11 startup logo stuck issue? Discover proven troubleshooting fixes for 2026, from quick reboots to ...
Use these fixes if your Windows PC is stuck in a boot loop after a BIOS update. Before proceeding, disconnect all peripherals and check if your PC boots into Windows. Press and hold the power button ...
Microsoft’s May 2025 update for Windows 11 (KB5058405) caused an unexpected boot problem for users running versions 22H2 and 23H2. After installing that security patch, some systems couldn’t load a ...
Microsoft is aware of an alleged issue that leaves PCs unable to boot and requires manual recovery after Windows 11 January ...
Windows 11 had a rough 2025. We tracked the top 20 Windows 11 issues reported by Windows Latest, from failed updates to ...
Beware the BitLocker startup loop after Windows 10 update. Update, May 18, 2025: This story, originally published May 17, has now been updated with a statement from Microsoft regarding the Windows 10 ...
Some machines are failing to start after security updates, prompting yet another Microsoft investigation Microsoft is ...
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