Windows 11 KB5074109 (January 2026 Update) is causing major issues on some PCs, and Microsoft has more details to share.

The first big Windows update of 2026 is a glitchy mess - here's the full list of bugs and fixes ...

This comes just hours after reports that another emergency update has been issued by Microsoft to affect other problems ...

Everyone knows you need to keep your operating system up to date, but what happens when a company botches the update and ...

Why you need Microsoft's new emergency Windows patch - and the black-screen bug to watch for ...

After Windows 11 January 2026 update, we're seeing reports of other issues, including a sleep problem (S3), and more.

In confirmed cases, Windows 11 boot failure occurs post-update, with the machine stuck at a black screen and unable to ...

Neowin also notes another dark side to this latest issue. “Interestingly, Microsoft came up with a technical solution for ...

Microsoft ships Windows 11 KB5074105 to Insiders, raising builds to 26100.7701 and 26200.7701 and addressing multiple system issues.

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

Microsoft issued a second emergency Windows patch in January after earlier fixes caused new bugs, raising concerns about ...

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 ...