Microsoft has confirmed that some users might find their PC unable to boot after installing the January 2026 security update released on January 13. This is on top of the plethora of other issues that ...

A Windows 11 update (KB5058405) is causing a severe “recovery error” that prevents some PCs from booting. Primarily affecting enterprise VMs, some physical PCs are also impacted. Microsoft is ...

PCs are now failing to start. Just when you thought it was safe to update your PC and get back to work, there’s another warning about January’s mandatory security update. You’ll know if you’re ...

A Windows 11 security update triggered Microsoft app sign-in failures, prompting an emergency patch and a manual workaround ...

Microsoft's Windows 11 January 2026 Update woes continue, and now the company is confirming that some users are no longer able to boot their PCs, receiving the BSOD stop code "UNMOUNTABLE_BOOT_VOLUME" ...

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 ...