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.

Windows 11 update may stop some PCs from booting, warns Microsoft

Microsoft has posted an online bulletin confirming that the company is investigating reports that state Windows 11's latest ...

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 ...

Windows PCs ‘Suddenly’ Fail After Microsoft’s New Update

This comes just hours after reports that another emergency update has been issued by Microsoft to affect other problems ...
Windows Report

Microsoft Shares Workarounds After KB5074109 Severely Broke Outlook on Windows 11

Microsoft shares workarounds for a Windows 11 KB5074109 bug that breaks Outlook for POP email accounts and PST files.

Microsoft Confirms Emergency Updates For Most Windows PCs

As reported by Windows Latest, Microsoft has now “released fixes for at least two bugs.” Specifically, the shut-down failure ...

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 ...
Redmondmag.com

Microsoft Releases Emergency Fix for Azure Virtual Desktop, Windows 365 Authentication Failures

Microsoft released an out-of-band update Friday to resolve credential authentication failures affecting Azure Virtual Desktop and Windows 365 connections that emerged after the company's January 2026 ...