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 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 ...
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