Windows 11 users are encountering a bug that causes the Task Manager tool to replicate itself instead of closing, leading to potential performance issues. As reported by Reddit users and The Verge, the optional Windows 11 KB5067036 update triggers this issue.
The bug renders the ‘X’ button ineffective for closing Task Manager, leaving the application running in the background. Subsequent attempts to close the tool result in multiple instances, potentially hindering system performance.
Although the KB5067036 update aimed to address app grouping issues within Task Manager, Microsoft has not officially acknowledged this new bug. The company’s update notes do not mention any Task Manager alterations beyond the grouping fix.
For affected users, a workaround suggested by Windows Latest and Reddit involves terminating individual Task Manager instances using the ‘End task’ button or employing the command taskkill /im taskmgr.exe /f in the Windows 11 Command Prompt to close all instances simultaneously.
Source: The Verge