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

Windows 11 KB5074109 causes a black screen on some PCs, including those with an Nvidia GPU, and also freezes Outlook if you ...

Microsoft is investigating a Windows 11 regression that is causing classic Outlook to hang, lag, or become unresponsive after the January 13, 2026 cumulative update (KB5074109).

Windows 11 KB5074109 is causing crashes, reboots, black screens, and BSOD errors for some users, but workaround is available.

Windows 11 KB5074109 causes Outlook freezing for POP accounts. Microsoft confirms the issue and investigates a permanent fix.

Microsoft has released Windows 11 KB5074109 and KB5073455 cumulative updates for versions 25H2/24H2 and 23H2 to fix security ...

Microsoft's January 2026 security update for Windows 11 has triggered some highly disruptive system issues, users report. As ...

Microsoft has shipped its first Patch Tuesday update of 2026 for Windows 11, delivering cumulative update KB5074109 to ...

While millions await permanent resolution from Microsoft, Stellar Repair for Outlook is helping hundreds of users remedy the situation by offering an immediate and proven solution. This powerful yet ...

Microsoft issued emergency patches for Windows 11 this week, but the volume of recent bugs means Outlook Classic is still ...

Microsoft's January security updates for Windows 11 also appear to be disrupting Outlook. Microsoft is investigating problems ...

A widespread issue has emerged in classic Microsoft® Outlook following the Windows 11 patch update KB5074109 on 13 Jan, 2026. POP account users have reported that Outlook is unable to exit cleanly.