We are receiving the DNS Event error 4515 on DC restart. Our Domain is a single domain. We have used TID 867464. For Option 1 - ForestDNSZones, nothing displays beyond CN=LostandFound and CD=NTDSQuotas. For Option 2 - DomainDNSZones, there is a CN=MicrosoftDNS, and under that were two records listing our domain, such as contoso.com and contoso.com/cnf-333-3333-3333-33333. We deleted the 2n'd record on one DC, and followed the rest of the instructions to restart services and restart DNS. We ran the process on only one of our DCs and did not stop any DC replication when the 2nd record was deleted. After waiting approx. 1 hour, replication removed the 2nd record from the DomainDNSZones/MicrosoftDNS listing, however, on restart, the DC from which the deletion was started still displays the same error. What step have we missed?