Delete orphaned DFS namespace

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

• launch adsiedit.msc
• locate the following path
  • 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