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

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

Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...

Microsoft has released the first Windows 10 update of 2026, an important security patch called update KB5073724. This update is available for users of Windows 10 21H2, Windows 10 Enterprise LTSC 2021, ...

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

Just in case you thought Windows 11 24H2's issues were over, here's the latest headache from the good folks at Microsoft. It turns out that physical installation media (meaning CDs and flash drives) ...

Now that Windows 10 is no longer supported, it's become a more attractive target for hackers. That doesn't mean you need to ...

There is a certain Windows 11 feature that, if turned off, requires a clean installation of the OS from scratch whenever you ...

Microsoft shared a temporary workaround for customers experiencing Outlook freezes after installing this month's Windows ...