Last two weeks, when I pressed Ctrl+Alt+Del to open up the Task Manager, suddenly this error message appeared on the screen,
Task Manager has been disabled by your administrator.
It was weird because I am the administrator of the computer and I didn’t disable it but how come it says the Task Manager has been disabled by me, the admin?
First thing came to my mind was, it most probably the computer has been infected by a virus and the virus has modified the registry keys, disabled the Task Manager.