If the game has been installed on a central server, it most likely will not function or it will only work for one student computer. It will not save games because it was not designed to be served over a network. Only players' information files (saved games) should be saved on the server drive (drives E: or higher).
You must install the game application on each individual computer's hard drive. Uninstall the game from your server drive and install it on each computer's local drive.