It is a problem to install core and data in one path? i have "C/Games/rF2/Core/userdata" is this a problem ??
I structured it into X:\rfactor2\Core X:\rfactor2\Data Works like a charm I guess, that your case is related to where the game you have installed. Installing onto system partition is not good choice, IMO. But installing it into root instead of program files is just .... (name it on your own) install rf2 into program files or better onto another partition. In 2nd case you will not be forced to search rf data files (logs, profiles etc) on C anymore.