Start -> Run -> ntdsutil [Enter]
ntdsutil: partition management [Enter]
partition management: connect
server connections: connect to server dc10.domain.local
server connections: QUIT
partition management: list
0 — CN=Configuration,DC=domain,DC=local
1 — CN=Schema,CN=Configuration,DC=domain,DC=local
2 — DC=domain,DC=local
3 — DC=eburg,DC=domain,DC=local
4 — DC=DomainDnsZones,DC=eburg,DC=domain,DC=local
5 — DC=DomainDnsZones,DC=domain,DC=local
6 — DC=ForestDnsZones,DC=domain,DC=local
partition management: delete nc DC=DomainDNSZones,DC=eburg,dc=domain,dc=local
partition management: delete nc DC=eburg,dc=domain,dc=local
partition management: quit
ntdsutil: quit