ZDNET's key takeaways The January Windows update introduced a couple of new bugs.The glitches affect Windows 11 and 10 and Windows Server.Microsoft has issued emergency patches to resolve the problems.

January has become a nightmare for millions of Windows users, as Microsoft’s latest January update creates a surprising raft of issues. We have seen multiple emergency updates. But serious problems remain. And there’s no firm timeline on fixes.

Microsoft has confirmed that the Windows 11 January 2026 Update is causing at least three major issues, rolling out fixes for two bugs.

Microsoft has released the KB5073724 extended security update to fix the Patch Tuesday security updates, including 3 zero-days and a fix for expiring Secure Boot certificates.

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Windows 11 had a rough 2025. We tracked the top 20 Windows 11 issues reported by Windows Latest, from failed updates to broken features.

Microsoft has started rolling out new Secure Boot certificates that will automatically install on eligible Windows 11 24H2 and 25H2 systems.

That surprising revelation came from Windows Latest, which spotted Chrome pinned to the Windows 11 taskbar in one of Microsoft’s own ads, published on its own YouTube channel. With the furor now past, Microsoft has now fixed the mistake.