Microsoft is investigating a Windows 11 regression that is causing classic Outlook to hang, lag, or become unresponsive after the January 13, 2026 cumulative update (KB5074109).
Microsoft confirmed that the KB5074109 January Windows 11 security update causes the classic Outlook desktop client to freeze ...
Windows 11 KB5074109 causes Outlook freezing for POP accounts. Microsoft confirms the issue and investigates a permanent fix.
While millions await permanent resolution from Microsoft, Stellar Repair for Outlook is helping hundreds of users remedy the situation by offering an immediate and proven solution. This powerful yet ...
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