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

Microsoft has released another emergency Windows 11 update after a January patch triggered widespread app crashes, Outlook ...

Microsoft says uninstall Windows 11 update KB5074109 to fix Outlook Classic hangs, black screens and other stability issues ...

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

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

Microsoft has had to issue two out-of-band updates to fix its buggy Windows 11 patch.

Microsoft confirmed that the KB5074109 January Windows 11 security update causes the classic Outlook desktop client to freeze ...

Remember that Windows bug preventing PCs from shutting down or hibernating? It affects more devices than we initially thought ...

The fix is for a bug that prevents some systems from shutting down, while another bug that prevents hibernation has no ...

Windows 11 Patch Tuesday updates for 24H2 and 25H2 reportedly break classic Outlook, causing freezes, hangs, and lost email ...

Microsoft’s first Windows 11 security update of 2026 broke shutdowns and some Remote Desktop sign-ins. Microsoft has released ...

The most recent January Windows Update is broken on a number of PCs, but at least virtual machines don't seem to be impacted.