To run the game on your computer, you generally need two things: the Xenia Emulator legal copy of the game's disc or digital file (ISO/XEX format). Download Xenia : Most users recommend the Xenia Canary
The most reliable way to play Forza Horizon 1 on PC today is via the emulator, specifically the Xenia Canary build. Community updates have made the game "fully playable" from beginning to end on modern hardware. Forza Horizon 1 Pc Download Mediafire