Exchange 2007 Uninstall hangs on Remove Exchange Files

I was working with a client today on decommissioning an Exchange 2007 box after a successful upgrade to Exchange 2010. During the final phase of the project, I was uninstalling Exchange 2007 from the server and saw the processwas taking an unusual amount of time. Being as this environment was in poor shape, I chose not to think anything of it.

After 2 hours I finally became concerned and stumbled across this: http://support.microsoft.com/kb/959959

Basically it says to do the following:

1. Open Task Manager
2. Kill the process for powershell.exe

Basically a command being run in powershell failed to invoke causing the uninstall process to hang. Hope this helps…