Mar 062008

This tutorial will explain how to remove domain controller from your network.

Procedure to follow

On the last domain controller in the domain, click Start, and then click Run.

In Open, type dcpromo to open the Active Directory Installation Wizard, and then click Next.

On the Remove Active Directory page, select the This server is the last domain controller in the domain check box, and then continue to follow the wizard.


• Removing a domain will result in the permanent loss of any data contained in that domain. This includes all user, group, and computer accounts.

Useful Notes

• To perform this procedure, you must be a member of the Domain Admins group (in the forest root domain) or the Enterprise Admins group in Active Directory, or you must have been delegated the appropriate authority. As a security best practice, consider using Run as to perform this procedure. For more information, see Default local groups, Default groups, and Using Run as.

• To remove an Active Directory domain, you must first demote all other domain controllers associated with the domain. For information about demoting domain controllers.

• If the domain has child domains, it cannot be deleted.

• If this is the last domain in the forest, demoting this domain controller will also delete the forest.

• If the domain controller currently holds the domain naming master or schema master operations roles, transfer the role to domain controller in a different domain before removing the domain. For information about locating operations masters and transferring operations master roles.

• If the domain controller holds the last replica of one or more application directory partitions, you must first remove the last application directory partition replicas from the domain controller before you can delete the domain. You can use the Active Directory Installation Wizard to remove all application directory partition replicas from the domain controller or you can manually remove the partitions using the Ntdsutil command-line tool.

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  4 Responses to “How to remove a domain controller from Win Server 2003”

  1. Thx, it Works!!!

  2. how to remove domain controller from server 2003 in new forest

  3. Hello there!! Removed it with the wizard and it rebooted and Now I can not log back in??? Please Help???

  4. 1. Make sure DNS is re-pointed to a valid DNS server other than itself in your AD infrastructure *before* you demote it.
    2. Also ensure that you remember the local Administrator password set at the time it was demoted.

    If none of these two conditions are met, you’re going to have a hard time logging in.

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