URGENT HELP NEEDED Exchange 2010
We currently have exchange 2003. We wanted to upgrade to exchange 2010 sp1 today.
We now have a big issue.
My colleague bought up a server 2008R2 server and fully updated from windows update.
He then ran the exchange setup wizard and selected all the roles, the installer performed all the checks and told us what else was needed. (IIS, filter pack for office 2010 etc) They were then installed.
The wizard then started installing the roles, they all completed except for the mailbox role, this was left for 2 hours and the progress bar had not moved so he killed the installer in task manager.
We are now not able to remove exchange from that server. It also shows up in the system manager for exchange 2003 on the 2003 box as a new administrative group.
we have tried rightclick, delete on this group but it wont delete.
any ideas as to how we can remove the traces of ex 2010 and start again.