Let' s Begin,
Step 1: Press these keys " Windows + R" pr select "run" from start menu , these will invoke Run dialogue box.
Step 2: In Run dialogue box type "gpedit.msc" without quotes and click on "OK", these would invoke Group Policy Editor (It is used to define user and computer configuration for group of user or computer).
Step 3: There you would find "Computer Configuration " and "User Configuration" in Left Pane.Navigate to These path :
User Configuration -> Administrative Templates -> System -> Ctrl+Alt+Del
Step 4: Now In " Ctrl+Alt+Del option , you'll find "Remove Task Manager" open it.
Now to Enable Task Manager: select "Disabled " radio button
Disable Task Manager: select "Enabled " radio button
and click "OK". and close Group Policy Editor you will see effect immediately.
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