Turn 10 Studios and Playground Games developed the game strictly for Xbox hardware. The architecture of the game was never ported to run natively on Windows.
Because no official release exists, the primary method for playing Forza Horizon 2 on a PC is through an or by using Xbox Play Anywhere cloud streaming , though the latter usually requires an active subscription and internet access, not a direct download.
Extremely experimental. Most users report it is unstable or unplayable. 🛠️ Basic Setup for Xenia (Emulation)