We are attempting to decommission an Exchange 2007 Server (single server). We have already gotten 2010 set up, installed, mailboxes moved and public folders moved. We went through and removed the replicas on the old server as well as removing the mailbox database and public folder database.
From this point we are attempting to Uninstall Exchange 2007 using either the Wizard or through cmd using setup.com /mode:uninstall after navigating to the Bin folder in the Exchange server. Each time however, we get the same error regardless of how we are doing it.
We uncheck all roles, hit Next, and it fails during the Readiness Check within 10 seconds on each role (Mailbox, Client Access, Hub Transport) each time saying: 'An error occurred while running the test. The Computer may be out of Memory, or the XML files have been modified. Parameter name: ConfigurationFileLocation'
I've gone through using ADSI Edit and removed the server from the Configuration>Services>SiteDomain>Administrative Groups>Exchange Administrative Groups>Serversand it was none existent in the Databases section.
Even after all of these steps I'm still getting the error about the memory or XML file issue. Is there a way to replace the XML files with 'clean' ones or a way to repair the existing ones? I'm just simply wanting to uninstall it at this point.
Thanks!