Windows 11 KB5067036 issue: Task Manager won’t close and duplicates, may hurt performance

Windows 11 KB5067036 Issue: Task Manager Won't Close and Duplicates

A strange bug in Windows 11 KB5067036 causes the Task Manager instance to duplicate every time it is closed, potentially hurting PC performance.

The update, released on October 28, includes a new Start menu, colorful battery icons, and a Recommended feed in File Explorer. It also fixes issues with shutting down the system using Update & Shut Down in the Start menu's power options.

30% of our 100 virtual machines have run into this odd bug.

Author's summary: Windows 11 KB5067036 has a bug causing Task Manager duplication.

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Windows Latest Windows Latest — 2025-10-29

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