The domain controller was also a member of the replication group for the Active Directory SYSVOL.
Follow these steps to remove the domain controller:
- Open the Active Directory Administrative Center (dsac.exe).
- At the top of the left navigation pane, switch to Tree view from List view.
- Expand the Active Directory domain.
- Expand the System container.
- Expand the DFSR-Global Settings container.
- Expand the Domain System Volume container.
- Expand the Topology container.
- In the main window, right-click the object for the domain controller you want to delete from the Topology container:
- Select Delete ...