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Windows 11 Task Manager Bug Causes Performance Issues After Update KB5067036
First seen 10 Nov 2025, 11:52 UTC
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Microsoft has acknowledged a problem with the Windows 11 Task Manager following the installation of the October 2025 optional update (KB5067036). Users report that the Task Manager fails to close properly, leading to multiple instances running simultaneously and causing performance degradation, such as CPU hangs and stuttering.
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