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 to go to Windows Recovery Environment to uninstall the offering update just ...

Windows 11 appears to have a boot failure bug that's caused by an update failure bug, creating a circle of, err, bugs

Round and round we go.

Microsoft links Windows 11 boot failures to failed December 2025 update

Microsoft has linked recent reports of Windows 11 boot failures after installing the January 2026 updates to previously failed attempts to install the December 2025 security update, which left systems ...
Guru3D

Windows 11 January security update can break boot on 24H2/25H2

A fresh wave of Windows 11 update trouble is making the rounds, and this one is about as disruptive as it gets: some PCs reportedly can’t boot after installing the latest January 2026 security update.