We recently replaced our 2003 DC's and are now running a 2008R2 and 2012R2 DC. The process to make the new DC's and demote the old ones went fine. However, AD Sites & Services is still showing the two old 2003 DC's but they aren't expandable. Should they be deleted from the list or will they be removed when I upgrade the domain functional level? Or will deleting the AD server object remove them? Or are they ok to stay or a different way to remove them.
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