Microsoft confirmed that the KB5074109 January Windows 11 security update causes the classic Outlook desktop client to freeze ...
XDA Developers on MSN
Windows 11's January update is causing chaos with Outlook, and there's no fix yet
There are workarounds, though.
Windows 11 KB5078127 is an 'out-of-band' patch to fix an issue that broke Outlook Classic (POP, PST) after January 2026 Patch ...
Windows 11 KB5074109 causes a black screen on some PCs, including those with an Nvidia GPU, and also freezes Outlook if you ...
Windows 11 KB5074109 causes Outlook freezing for POP accounts. Microsoft confirms the issue and investigates a permanent fix.
January's Windows 11 update rendered classic Outlook unusable for many users. While Microsoft works on a fix, they've ...
Microsoft has released a second emergency, out-of-band update for Windows 11, this time to address crashes and instability ...
If you see a message saying that the new Outlook is already running in Windows 11, this post will help you address the issue. Outlook is already running. Please close the other window to continue.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results