To open the Group Policy Object Editor in a stand-alone XP machine or a stand-alone Windows 2003 server by using Miscoroft Management Console, follow these steps.
• Choose Start > Run, open the run dialog box, type MMC and hit Enter.
•From the File menu, choose Add/Remove Snap-in.
•Select the Group Policy Object Editor Snap-in and click Add.
•At the "Select Group Policy Object" screen, keep the default "Local Computer Policy" and click Finish.
•At the Add Standalone Snap-in dialog box, click Close.
•At the Add/Remove Snap-in dialog box, click OK.
The Local Group Policy console will be opened as shown below.
You can see there are two catagories, "Computer Configuration" and "User Configuration". Local Group Policy is unique to each specific machine. You can see the Local Group Policy settings in deep by drilling down through the both top level catagories, "Computer Configuration" and "User Configuration" .
To understand how this is working, drill down User Configuration > Administrative Templates > System > Ctrl+Alt+Del Options and select Remove Task Manager Once selected, click Enabled and select OK, as shown below.
Remove Task Manager Group Policy settings dialog box will be open as shown below.
When you again press the key combination Ctrl+Alt+Del, you can see the Task Manager button is disabled and you can no longer access the task manager utility. To revert this change, simply re-select Not Configured radio button.