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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 ...

New Windows 11 Security Update Might Have Killed Some Computers

The January 2026 Windows 11 update, KB5074109, might have killed some computers. If you're one of the unlucky ones, here's ...

Microsoft investigates Windows 11 boot failures after January updates

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

KB5074109 Update Causes Boot Failures on Windows 11 Devices

Windows 11 January 2026 updates may cause boot failures on some PCs. Microsoft is investigating issues linked to KB5074109.
Windows Latest

Microsoft suspects some PCs might not boot after Windows 11 January 2026 Update (KB5074109)

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

Error! Memory configured incorrectly. System halted!

The Memory configured incorrectly error occurs when your Windows computer detects some issues with your RAM. This article ...