Hi Evnul,
There are several reasons why the Task Manager automatically closes when opening. These may include the recent changes made on your computer or there is a corruption on your user profile. Answering the following questions may help us in uncovering the underlying cause of the issue:
- Were there any changes made on your computer prior to the issue?
- Have you tried creating a temporary user profile to isolate the issue?
- Just to verify, is your computer shutting down when you are accessing the Task Manager or the Task Manager closes itself?
- Are you getting an error message or code when this happens?
Regards.