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Microsoft fixes Windows Task Manager bug affecting performance

ID: 46d31c56-931a-510c-b0ec-5c1e798c06fc

STIX ID: report--46d31c56-931a-510c-b0ec-5c1e798c06fc

Feed Name: Bleeping Computer

Threat Score
10/100

Date Published: 2025-11-12

Date Updated: 2026-07-18

Author: Sergiu Gatlan

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**Microsoft resolved a Windows 11 update bug (KB5067036) that prevented Task Manager from fully quitting, which could leave multiple background taskmgr.exe instances consuming resources and degrading performance; the issue was fixed in the November cumulative update (KB5068861) and Microsoft published a manual workaround using taskkill for users who cannot immediately install the patch.**

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