I need to demote a DC to member server, but it isn't the last DC in the
domain. I tried with DCPROMO and NTDSUTIL, but because of various errors, the
procedure failed. I wish to know if is possible to re-establish a member
server in some other way.
Is the other domain controller in the same site?
Another common reason for demotion problems is FSMO transfers. You may want to transfer the FSMOs from the server manually before trying to demote it.
Unfortunately, there is no way to force the machine to demote if it
doesn't want to. You'd have to reinstall the operating system.
This was first published in September 2001