Remove Orphaned DFS Namespace

To removed an Orphaned DFS Namespace from a Windows domain infrastructure:

• launch adsiedit.msc
• locate
  • default naming context
  • dc=domainname,DC.com
    • cn=System
    • CN=Dfs-Configuration
    • CN=NametobeRemoved

Once removed force a replication on all domain controllers.

repadmin /syncall

One each server that hosted a DFS replica for the computer to locate the new active directory configuration

dfsrdiag pollad