Created an Server 2019 and made a DC. Was given the wrong key which made the server an KMS server.
I've demoted the DC and ran slmgr to update the server with the correct key (all worked OK) BUT the DNS still has the _VLMCS key pointing to the server.
I cant delete the key, everytime I delete the key and refresh it comes back.
adding regkeys to disable it
running slmgr commands
But still no luck...any ideas?