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.

Some PCs are failing to boot after this month's Windows Update

Another week, another big Windows problem.

'Devices are failing to boot': Why the latest Windows 11 bug could cause Microsoft more grief

Windows 11 runs into another disastrous bug with its latest update — Microsoft admits an 'issue in which devices are failing ...
PCMag

Troubled Windows 11 January Patch Now Preventing Some PCs From Booting Up

Microsoft’s January 2026 security update for Windows 11 is continuing to cause problems for users. This comes after the patch ...