Many applications exist, above all games, that include an automatic anti-install, if it detects a virtual drive in your PC. That is to say, if you have some of these programs, your game simply won`t install. If you want to avoid having to uninstall all your virtual drives in order to enjoy your game, the best option is this simple program: Virtual-CD-Hide. It will hide this type of virtual drive, allowing your game to install normally.