I migrated from sbs 2003 to sbs 2011. Everything went beautifully, except for one thing. The uninstall of the old Excahnge on 2003 failed. I rebooted the 2003 and went to uninstall again, but the only 2 options were "Upgrade" and "None". When I select "None" it says I need to upgrade from Exchange 2000 before continuing setup.
The Exchange System Manager is gone, but there are still some services. How can I determine if its still an exchange server in the organization and go ahead and DCPromo it?
I used this article and it worked wonders btw: