[quickfist]

try to reinstall the game.

if you cant delete the game with uninstal just delete the moh folder, then you have to do this, before you can install it again

you need to use regedit and clean the registry.
these are the string that need to be deleted.
open regedit and delete the following
hkey local machine\software\ea games delete mohaa folder
hkey current user\software\ea games delete mohaa folder
hkey local machine\software\microsoft\windows\currentversion\ uninstall\delete{0DEA94ED-915 A-4834 -A87E-388D012C8E02}
reboot than you'll be able to install


i hope this helps