Should Exchange administrators uninstall the October 2026 Windows update?
No. Microsoft's Exchange team explicitly says not to uninstall the Windows security updates as a workaround. The issue is under investigation and Microsoft has described a temporary mitigation for affected systems.
Answered in
Exchange Symptoms After October Windows Updates: Microsoft's GuidanceMicrosoft links Exchange symptoms to October Windows updates, rules out the separate Exchange update, and warns against uninstalling patches.
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