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

The January 2026 Windows 11 update, KB5074109, might have killed some computers. If you're one of the unlucky ones, here's ...

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

Another out of band update has been issued to Windows 11 users to address a major bug that caused Outlook to become ...

Microsoft has confirmed that the boot failures with its January 2026 Windows 11 update are limited to “commercial” PCs and happened due to the December 2025 update failing to install and PCs being ...

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

Microsoft issued another out-of-band update to fix a bug that caused Outlook to crash for Windows 11 users. This second ...

Microsoft is investigating reports of serious boot failures affecting Windows 11 devices following the January 2026 security ...

Microsoft is investigating reports that some Windows 11 devices are failing to boot with "UNMOUNTABLE_BOOT_VOLUME" errors ...

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

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

After Windows 11 January 2026 update, we're seeing reports of other issues, including a sleep problem (S3), and more.