Windows 11 January 2026 updates may cause boot failures on some PCs. Microsoft is investigating issues linked to KB5074109.

Microsoft has responded to the torrent of headlines following multiple bugs and emergency updates with an assurance that it is “working to rebuild trust in Windows.” The company’s engineers, The Verge ...

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

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

Microsoft’s first Windows 11 security update of 2026 broke shutdowns and some Remote Desktop sign-ins. Microsoft has released emergency out-of-band fixes via Windows Update, including KB5077744 and ...

Microsoft issues second emergency patch for Windows this month - update your PC today ...

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

Microsoft has released emergency Windows 11 / 10 updates again with KB5078127 KB5078132 KB5078129, and KB5078131.

Windows 11 KB5078127 is an 'out-of-band' patch to fix an issue that broke Outlook Classic (POP, PST) after January 2026 Patch ...

Microsoft's January 2026 Patch Tuesday update – already notorious for causing serious issues – is now being blamed for slowing down Nvidia graphics cards. While Nvidia ...