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 ...

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

Microsoft says the October 2025 Windows security updates are causing smart card authentication and certificate issues due to a change designed to strengthen the Windows Cryptographic Services. This ...

Microsoft has had to issue two out-of-band updates to fix its buggy Windows 11 patch. Microsoft has had to issue two out-of-band updates to fix its buggy Windows 11 patch. is a senior editor and ...

Microsoft says the April 2025 security updates are causing authentication issues on some Windows Server 2025 domain controllers. The list of impacted platforms includes Windows Server 2016, Windows ...

Microsoft is kicking off this week with a duo of new Windows 11 preview builds. Those in the Dev Channel received build 26200.5622 (KB5058512), which introduces several improvements and new features, ...

Windows 10 product usually works with Windows 11, but the problems occur if your Windows 10 license is an OEM license (tied to original device hardware and not transferable) rather than a Retail ...

An October 2025 Microsoft Windows security update is wreaking havoc on enterprises, impacting multiple systems with bugs ranging from annoying to showstopper. The update in KB5066835 was intended to ...

Forbes contributors publish independent expert analyses and insights. Zak Doffman writes about security, surveillance and privacy. Microsoft’s mandatory security update this month has been described ...

June’s big Patch Tuesday update for Windows 11 has caused a bit of a mess for users, so much so that Microsoft had to briefly pause the update and issue an emergency patch… that ended up causing even ...