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

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Microsoft released unplanned updates over the weekend. They correct errors in the January patches and bring new boot certificates.

Frustratingly common for PC users, boot problems can stem from a variety of software and hardware glitches. A particularly frequent issue is when a Windows computer ...

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.

Are you facing an issue where your Windows PC won’t boot unless you remove and put RAM back in? If you have to reseat the RAM to boot your computer every time, the solutions provided in this article ...

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

Windows 11 KB5074109 is wreaking havoc thanks to several issues, with the most serious keeping users out of the operating ...

A Windows security update bug has prevented some Windows 11 24H2 and 25H2 users from booting into their PCs, requiring them ...

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

Microsoft is shifting focus to fixing Windows 11 performance and reliability after months of buggy updates, boot failures, ...

Struggling with the frustrating Windows 11 "Registry Database Corrupt" error? Discover proven, step-by-step fixes to restore ...