Policies are some of the most powerful tools at your disposal for administering user desktops. Policies can be used to control a user's environment and the system environment through a specific set of Registry settings. You can control many things with policies, including the following:
The ability for the user to view the Control Panel, Network Neighborhood, My Computer, Find, and Run buttons
Users' colors and wallpaper
Drive letters available to a user
The ability to use the Registry Editor
Whether common program folders are shown
With policies you can lock down a desktop very tightly and provide access only to the applications and settings that users absolutely need to perform their daily work.
Although the goals of policies are the same ...