Windows Report

KB5074109 Update Causes Boot Failures on Windows 11 Devices

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

Microsoft investigates Windows 11 boot failures after January updates

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

Microsoft probes Windows 11 boot failures tied to January security updates

Some machines are failing to start after security updates, prompting yet another Microsoft investigation Microsoft is ...
Forbes

Microsoft Confirms Windows Security Update Breaks VPN Connections

Updating your operating system has never been more vital, given the number of critical security vulnerabilities being fixed across iOS, macOS, and, of course, Windows right now. The very last thing ...
WIRED

Windowsに標準搭載された「Windows セキュリティ」は、こう使う

Windowsのユーザーは、かつてウイルスやマルウェアへの対策をサードパーティーのセキュリティツールに頼らざるを得なかった。しかし、いまやマイクロソフトのOSには独自のセキュリティソフト「Windows セキュリティ」が標準搭載されている ...

Microsoft shares workaround for Outlook freezes after Windows update

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