Microsoft Outlook Outage Leaves Users Without Email
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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 KB5074109 causes Outlook freezing for POP accounts. Microsoft confirms the issue and investigates a permanent fix.
If your Outlook Classic freezes or hangs when you use POP accounts or deal with PST files, you'll need to remove Windows 11 KB5074109.