How to remove Windows NT4 BDC (Backup Domain Controller) From Active directory?

After upgrading the NT4 domain to Windows 2000/2003 Domain, you may find out that the old BDC
(Backup Domain Controller) computer account still exits in the Active Directory.
�

Windows 2000 mixed�and Windows Server 2003 interim domain modes allow you to
use old BDC (Backup Domain Controller) servers with�Active Directory.�
�
Upgrading from a Windows NT domain
�
http://www.microsoft.com/technet/prodtechnol/windowsserver2003/library/ServerHelp/aa8a4ec6-f6f1-4f43-92a8-207ec4620226.mspx
�

�
Section A: Removing old computer account reference from the Active Directory
�
Option A: Upgrade the current BDC (Backup Domain Controller) server/s to Windows 2000/2003 Domain Controllers.
�
Option B: Remove the computer account from the Active Directory from the BDC (Backup Domain Controller)
�
� 1. Log on into the BDC (Backup Domain Controller)�with account that�is member in "Domain Admins" users
������� group.
�
� 2. Go to "Start" -> "Run" -> Write "Srvmgr" and press on "Enter" button.
�
��3. Remove the BDC (Backup Domain Controller) computer account from the domain.
�
�
Note: Removing the computer account will prevent the BDC (Backup Domain Controller)
���������� functions and will drop the option to use network resources from the domain.
�
Option C: Remove the computer account from the Active Directory manually.
�
���1. Logon into Windows XP or into the domain controller with account that�is member in "Domain Admins" users
������� group.
�
���2. Install Windows Support tools.
�
���3. Go to "Start" -> "Run" -> Write "Adsiedit.MSC" and press on "Enter" button.
�
���4. If your FQDN domain name is: domain.local and the BDC (Backup Domain Controller) remains
��������� in "Domain Controller" you can use the following instructions:
�
������� a. Expand Domain NC, expand DC=Domain,DC=Local, and then expand OU=Domain Controllers.
�
������� b. Right-click the computer name BDC (Backup Domain Controller), and then right click and choose "Delete"..


Note: Removing the computer account will prevent the BDC (Backup Domain Controller)
���������� functions and will drop the option to use network resources from the domain.
�

Section B: Removing old computer account reference from network servers
�
1. Delete old DNS/WINS records that points to the old computer account that was used by the
����� BDC (Backup Domain Controller).
�
�����
�
�

Domain and forest functionality
�
http://www.microsoft.com/technet/prodtechnol/windowsserver2003/library/serverhelp/B3674C9B-FAB9-4C1E-A8F6-787126471271.mspx

How to raise domain and forest functional levels in Windows Server 2003
�
http://support.microsoft.com/default.aspx?scid=kb;en-us;322692
�
Netlogon 5730 Events on a Windows NT 4.0 Backup Domain Controller in a Windows 2000 Domain
�
http://support.microsoft.com/default.aspx?scid=kb;en-us;302597
�

Microsoft corporation and/or its respective suppliers make no representations about the suitability, reliability, or accuracy of the information and related graphics contained herein. All such information and related graphics are provided "as is" without warranty of any kind. Microsoft and/or its respective suppliers hereby disclaim all warranties and conditions with regard to this information and related graphics, including all implied warranties and conditions of merchantability, fitness for a particular purpose, workmanlike effort, title and non-infringement. You specifically agree that in no event shall Microsoft and/or its suppliers be liable for any direct, indirect, punitive, incidental, special, consequential damages or any damages whatsoever including, without limitation, damages for loss of use, data or profits, arising out of or in any way connected with the use of or inability to use the information and related graphics contained herein, whether based on contract, tort, negligence, strict liability or otherwise, even if Microsoft or any of its suppliers has been advised of the possibility of damages.