http://msmvps.com/blogs/ad/archive/2009/03/30/removing-a-domain-from-active-directory-gotcha.aspxI’ve removed plenty of DCs and Domains in my years.  In fact I recently blogged about how remove a failed DC here .  It seems sometimes after removing a domain from your environment doesn’t remove it entirely.  You may see a message thatenCommunityServer 2008.5 SP2 (Build: 40407.4157)