How to Remove an Outbound Bridgehead Server in Windows 2000
- 1). Log on to the Windows 2000 server that you wish to remove from the domain.
- 2). Click "Start." Type "dcpromo" in the "Run" field, and then press "Enter."
- 3). Check the "Remove Active Directory" box. Click "Next."
- 4). Review the information listed in the "Summary" screen, and then click "Next."
- 5). Click "Finish" to remove the server. Reboot the server.
Source...