While there are many claims online about a "highly compressed 500MB" version of Forza Horizon 2 , a working version of the full game at that size is not realistic or safe Why 500MB is Unlikely Original File Size
to play on PC. You will need to "dump" your own game files, which will be the full ~35GB size. system requirements to see if your PC can handle the game via an emulator?
Do not download. It’s not a working game – it’s a trap for malware or wasted bandwidth. If you want Forza Horizon 2, play it legitimately on an Xbox console (it’s backward compatible on Xbox One/Series X|S). For PC, play Forza Horizon 4 or 5, which are properly optimized and often on sale.
Compressing a 35GB game down to 500MB represents a 98.5% reduction in size. No algorithm can achieve this without completely stripping away the assets, leaving the game unplayable. What is Actually Inside a 500MB Forza Download?