Search:

Forgot to answer your "how do I delete old AD info on new DC"

Too much to type, just go here: Cleanup old AD info in new DC

(wonder why your senior forcefully removed the old DC?? **puzzled**)

Evidently your senior does not follow a task checklist when doing something as important as a depromotion/promotion of a DC. (we all make mistakes)

Let's assume you set the new Domain Controllers...