On any domain controller, click Start, click Run, type Ntdsutil in the Open box, and then click OK.
Microsoft Windows [Version 5.2.3790] (C) Copyright 1985-2003 Microsoft Corp.
C:\WINDOWS>ntdsutil ntdsutil:
Type roles, and then press ENTER.
ntdsutil: roles fsmo maintenance:
Note: To see a list of available commands at any of the prompts in the Ntdsutil tool, type ?, and then press ENTER.
Type connections, and then press ENTER.
fsmo maintenance: connections server connections:
Type connect to server <servername>, where <servername> is the name of the server you want to use, and then press ENTER.
server connections: connect to server server100 Binding to server100 ... Connected to server100 using credentials of locally logged on user. server connections:
At the server connections: prompt, type q, and then press ENTER again.
server connections: q fsmo maintenance:
Type transfer <role>. where <role> is the role you want to transfer.
For example, to transfer the RID Master role, you would type transfer rid master:
Options are:
You will receive a warning window asking if you want to perform the transfer. Click on Yes.
After you transfer the roles, type q and press ENTER until you quit Ntdsutil.exe.
Restart the server and make sure you update your backup.