I tried to install Exchange 2010 and had problems. I reformatted the drives on the server and installed it without issue the second time around.
The first unsuccessful time I named the server - ExchangeServer
The the second and successful installation I named the server - Exchange
Now, when I am in the Exchange Management console, I see the ExchangeServer listed under the Database Management tab in Organization Configuration -> Mailbox, along with the proper one (Exchange). It's mounted status is 'unknown'. When I try to delete the database, I get an error stating several possible reasons. I believe the incorrect install is somehow still in the AD.
Can anyone suggest how to remove this bad installed reference (ExchangeServer)?