Files location: The Mass Effect game will read the files inside the Config folder.(%SystemDrive% will be replaced with the drive letter where your Windows system is installed on following a colon, and %Username% with the current user that you are logged into the system with.) On Windows Vista/7/8/10: %SystemDrive%\Users\%Username%\Documents\BioWare\Mass Effect\Config.On Windows XP/2000: %SystemDrive%\Documents and Settings\%Username%\My Documents\BioWare\Mass Effect\Config.All of the changes that are described in this article should only be tested on the files in the documents folder: