Windows 11 KB5074109 is now available for Windows 11 25H2 and 24H2. This release mostly has bug fixes and improvements.

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.

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

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

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

Last week's security patch is the latest buggy update that impaired some PCs. Take these steps before and after an update to ...

Windows 11 Enterprise and IoT get an update disrupting shutdown and hibernation functionality, but a more manual shutdown is ...

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