…How To…
 
 Uninstalling Active Directory is usually a simple procedure which I describe here. Although this is written for Windows 2003 the procedure is almost identical to uninstall Active Directory on Windows 2000.

You need to be a member of the domain admins group. 

1.) As when installing Active Directory, we start with the same simple command. Click on start, run and type “dcpromo” as below

2.) When the wizard starts, click next.

3.) OK to the next message. We are assuming this is the last or only server in the domain.

 4.) Check the box to remove the partitions (I took the screenshot before I checked it. Doh!)

5.) Click Next

6.) Select a password for the server administrator account

7.) Click Next on the information box.

8.) The removal process now starts and may take some time

9.) Click Finish and then restart and we’re away.