Task Manager in our use of the computer is needless to say, as long as a little understanding of the computer knows it is very useful, but if the Group Policy is modified to prevent access to the task manager what to do?
1
Enter Group Policy
Click Start, enter Gpedit.msc in the search box, press ENTER to enter Group Policy.
2
Then navigate to:
Local Computer Policy User Configuration Administrative Templates system Ctrl+alt+del options
3
Finally enable the Task Manager feature
In the list, open the Delete Task Manager property. On the Settings tab in the Properties, if the option "disabled" or "Not Configured" appears, select it as "turned on" and, when determined, Win7 task management will work again.
The above is a workaround to the task manager if the Group Policy is modified, and if the task Manager cannot be opened, remember to check here.