This week, the optional update KB5067036 for Windows 11 has become available. It introduces several new features, including a revamped Start menu. However, this update comes with a bug that had gone unnoticed until now, affecting the Task Manager.
The KB5067036 update for Windows 11 was highly anticipated. Indeed, this update brings a completely redesigned Start menu with improved organization. However, despite extensive tests, Microsoft overlooked a bug that affects the Task Manager and prevents it from closing properly.
How to fix the Task Manager bug in Windows 11 KB5067036?
The Task Manager does not close properly when the X button is used. Discreetly, a new instance is launched in the background when the user attempts to close it. This leads to multiple processes running simultaneously, causing issues with memory usage.
Windows has tested this to measure its impact. A single instance of the Task Manager consumes about 24 MB of RAM. The accumulation of these invisible instances gradually degrades the computer’s performance. For users, this could lead to a risk of saturating the RAM without them even realizing it.
While this bug affects both Windows 11 24H2 and 25H2 which was recently released, there is a temporary solution until an official fix is available. You can open the Windows command prompt and enter the following command to close all Task Manager instances:
- Press Windows + R.
- In the Run dialog, type cmd.
- Click OK.
- The command prompt opens.
- Type:
taskkill /im taskmgr.exe /f. - Press Enter.
This command forces the complete termination of all processes related to the Task Manager to free up memory occupied by ghost copies. This procedure is quite simple and accessible to anyone who knows how to open the system terminal.
