1. Open the Local Group Policy Editor.
2. In the left pane, click on User Configuration, Administrative Templates, System, and Ctrl+Alt+Del Options.
3. In the right pane, right click on Remove Lock Computer and click on Properties. (See screenshot above)
4. To Enable and Add Lock Computer -
A) Dot Disabled or Not Configured and click on OK. (See screenshot below step 5A)
B) Go to step 6.
5. To Disable and Remove Lock Computer -
A) Dot Enabled and click on OK.
6. Close the Local Group Policy Editor window. Your done.
Other ways to disable and enable can be found at my website: http://www.lightning-computers.net/cms/index.php
Stephen Boylan (L-CSteve), August 2010