I have uninstalled and reinstalled twice, however after each reinstall
settings are saved that I do not want to keep. I need to reconfigure the
admin GMS user properties as well as several other basic configuration
changes. Unfortunately since I appear to have lost the GMS admin user
name and password, I cannot configure anything inside GMS's MMC plug-in.
(This is why I'm trying to uninstall).

Is there a TID covering GMS uninstall? I come up empty in the knowledge
base. After the standard Add/Remove Programs uninstall of GMS, what
further steps are necessary to completely uninstall GMS (Non-Beta) from
a Windows 2003 R2 server?