So you pushed Office 2010 without removing the compat pack first?
Here are some articles with tips you can try
Can someone please tell this dummy in some detail how I "use a login script" to remove the compatibility pack for 2007 office system?
Thanks!
You need to get the GUID from the registry HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall and find the entry for the program. There should be an uninstallstring you can use in a login script. Pass the quiet install parameters to that to automate.
I.E.
msiexec /qn /x {90120000-0020-0409-0000-0000000FF1CE}
I haven't any HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall.
But I found the key
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\000021090200A0C00000000000F01FEC\InstallProperties
with values
DisplayName = Paquete de compatibilidad para 2007 Office system (same product in Spanish)
UninstallString = MsiExec.exe /X{90120000-0020-0C0A-0000-0000000FF1CE}
There is a little change in the GUI, may be related to SP3 for Compatibility Pack, which is installed. That UnistallString worked for me.
In a startup script it must include "/qn" as there is no user interaction. I.e.
msiexec /qn /x {90120000-0020-0C0A-0000-0000000FF1CE}
Yes, I do know: this thread is a year old. But may be this post help somebody :-)