Using Group Policy Editor, you can make system wide settings and impose system wide policies. If you find yourself using the Group Policy Editor all the time, you might want to make it appear in the Control Panel along with all the other tools. Here is how you can do it :
Download AddGroupPolicyToControlPanel.zip to your Desktop. Extract the contents of the Zip file to a folder. Double-click on AddGroupPolicyToControlPanel.reg. Choose Yes when asked. And you are done.
Now if you open Control Panel → Additional Options, you can see the link to Group Policy Editor.