Performing metadata cleanup in Active Directory involves removing traces of domain controllers that were not properly demoted or have become inaccessible. Here are the steps to manually removing A Domain Controller Server.

Removing metadata via Active Directory Users and Computers

• Log in to DC server as Domain/Enterprise administrator and navigate to Server Manager > Tools > Active Directory Users and Computers
  
  • If you have identified replication partners in preparation for this procedure and if you are not connected to a replication partner of the removed domain controller whose metadata you are cleaning up, right-click Active Directory Users and Computers node, and then click Change Domain Controller. Click the name of the domain controller from which you want to remove the metadata, and then click OK.

  

  • Expand the domain of the domain controller that was forcibly removed, and then click Domain Controllers.

  

  • In the details pane, right-click the computer object of the domain controller whose metadata you want to clean up, and then click Delete.

  

  • In the Active Directory Domain Services dialog box, confirm the name of the domain controller you wish to delete is shown, and click Yes to confirm the computer object deletion.

  

  • In the Deleting Domain Controller dialog box, select This Domain Controller is permanently offline and can no longer be demoted using the Active Directory Domain Services Installation Wizard (DCPROMO), and then click Delete.

  

  • If the domain controller is a global catalog server, in the Delete Domain Controller dialog box, click Yes to continue with the deletion.

  

  • If the domain controller currently holds one or more operations master roles, click OK to move the role or roles to the domain controller that is shown. You cannot change this domain controller. If you want to move the role to a different domain controller, you must move the role after you complete the server metadata cleanup procedure.

  

  Clean up server metadata using Active Directory Sites and Services

  • Open Active Directory Sites and Services.

  

  • If you have identified replication partners in preparation for this procedure and if you are not connected to a replication partner of the removed domain controller whose metadata you are cleaning up, right-click Active Directory Sites and Services, and then click Change Domain Controller. Click the name of the domain controller from which you want to remove the metadata, and then click OK.

  

  • Expand the site of the domain controller that was forcibly removed, expand Servers.

  

  • expand the name of the domain controller, right-click the NTDS Settings object, and then click Delete.

  

  • In the Active Directory Sites and Services dialog box, click Yes to confirm the NTDS Settings deletion.

  

  • In the Deleting Domain Controller dialog box, select This Domain Controller is permanently offline and can no longer be demoted using the Active Directory Domain Services Installation Wizard (DCPROMO), and then click Delete.

  

  • If the domain controller is a global catalog server, in the Delete Domain Controller dialog box, click Yes to continue with the deletion.

  

  • If the domain controller currently holds one or more operations master roles, click OK to move the role or roles to the domain controller that is shown.

  Right-click the domain controller that was forcibly removed, and then click Delete.

  • In the Active Directory Domain Services dialog box, click Yes to confirm the domain controller deletion.
    

    

So, that’s all in this blog. I will meet you soon with next stuff. Have a nice day!!!

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