Windows 11 KB5078127 is an 'out-of-band' patch to fix an issue that broke Outlook Classic (POP, PST) after January 2026 Patch ...
The latest Windows 11 update is an optional one, but Microsoft has a few solid reasons for you to pull the trigger and install it right now.
Windows 11 January update is triggering black screens, Outlook crashes, and remote desktop sign-in failures, for home and enterprise users.
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