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

Windows 11 KB5067036 has a bug that causes the Task Manager to duplicate every time it is closed, potentially hurting PC performance.

The update, released on October 28, includes new features such as a redesigned Start menu, colorful battery icons, and a Recommended feed in File Explorer.

Microsoft hasn’t acknowledged the reports yet, but 30% of our 100 virtual machines have run into this odd bug.

KB5067036 also fixes issues with Windows shutting down when using Update & Shut Down in the Start menu's power options.

Author's summary: Windows 11 update causes Task Manager issues.

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Windows Latest Windows Latest — 2025-10-29

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