Microsoft reports 'an issue in which devices are failing to boot' after downloading the latest update

As reported by Windows Latest, Microsoft has updated users in a support document that it is "investigating customer reports ...
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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 to go to Windows Recovery Environment to uninstall the offering update just ...

'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 ...

Windows 11 Patch Tuesday horrors continue as some PCs now cannot boot

The January 2026 Patch Tuesday keeps on giving users headaches, as some affected systems now cannot boot with an "UNMOUNTABLE ...