Due to the problems of malware and virus, you can’t open your task manager.
If you can’t open your task manager using these normal 6 methods or if you are getting an error messages like ‘Task Manager is Disabled by Your Administrator’, then you can try these methods to start your Task Manager.
Ø Open Run Press Window key + ‘R’ or Start button -> Run (If you can’t see the ‘Run’ shortcut on your task manager, then you can enable here).
Ø Then type ‘gpedit.msc’ (without quotes) in Run text box. Click OK button or press Enter key.
Ø Now ‘Local Group Policy Editor’ window will open. Actually ‘Local Group Policy Editor’ contains all settings for local computer user.
Ø Now follows to: User Configuration -> Administrative Templates -> System -> Ctrl+Alt+Del Options.
Ø Now on right side, you can see some list of items. Find and double click on ‘Remove Task manager’.
Ø Now a window of ‘Remove Task Manager’ will open.
Micro Soft says:Ø Default option for ‘Remove Task Manager’ is ‘Not configured’, now you have to change radio button selection from ‘Not Configured’ to ‘Disabled’. Then click on ‘OK’ button.
This options prevents users from starting Task Manager (Taskmgr.exe). If this setting is enabled and users try to start Task Manager, a message appears explaining that a policy prevents the action.Task Manager lets users start and stop programs; monitor the performance of their computers; view and monitor all programs running on their computers, including system services; find the executable names of programs; and change the priority of the process in which programs run
Ø Now you can open your task manager using normal methods.
If you can’t open your Local Group Policy Editor, then open your Run command and paste this string without quotes on your Run textbox:
“REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 0 /f”
Now try to open Local Group Policy Editor to enable your disabled Task Manager.