Computer company Win7 System Task Manager locked how to unlock

1, first click on the Ghost Win7 System Start menu running, and then enter the "gpedit.msc" command in the Run dialog box, return to open the Group Policy Editor;

2, then in the Open window, expand Local Computer Policy--User Configuration--Manage templates--system--Ctrl+alt+del options, and then locate and double-click the Delete Task Manager option on the right side of the window;

3, in the bounce out of the settings interface, select "Not Configured" or "disabled", and then click the OK button to save the exit on it.