There are workarounds, though.

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 ...

Windows 11 Patch Tuesday updates for 24H2 and 25H2 reportedly break classic Outlook, causing freezes, hangs, and lost email ...

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

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

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

Microsoft has confirmed that the Windows 11 January 2026 Update is causing at least three major issues, rolling out fixes for ...

Microsoft confirmed that the KB5074109 January Windows 11 security update causes the classic Outlook desktop client to freeze ...

January's Windows 11 update rendered classic Outlook unusable for many users. While Microsoft works on a fix, they've ...

Discover how to use the Windows 11 Reliability Monitor Tool to diagnose system crashes, errors, and stability issues. Step-by ...