windows server 2003 - Left over domain controllers

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In our Windows 2003 network we have
two active domain controllers. I say active because listed in the Active Directory Sites
and Services (Sites, Default-First-Site-Name, Servers) there are 4 servers listed. One
of these, let's call it Server-X, has no objects associated with it and it has long been
powered down, two are legit domain controllers, and the final one, let's call it
Server-Y, appears as a legit DC but I am having trouble removing
it.

So, Server-X must go. I was already under
the assumption that it was removed... so would it be safe to delete it from the AD:Sites
and Services DFSN Servers list?

Server-Y must
also go but I'm having trouble removing it using the dcpromo wizard. This server is
actually causing issues because workstations within the domain, every now and again, try
to authenticate against it and get rejected. Should I just use dcpromo
/forceremoval?

Thank
you

Answer

I would use /forceremoval only as a last
resort, it is probably stopping you for what it considers to be a very good reason.
First question, are all your Operations Masters accounted for. Active Directory won't
like removing a DC that is acting in one of those Single Master
roles.

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