: This usually means one of the parts, possibly part08.rar , is corrupted. You may need to redownload that specific part.
: You only need to interact with the first part ( part01.rar ). Forza.Horizon.3.part08.rar
: Microsoft officially delisted Forza Horizon 3 from the Microsoft Store in September 2020. Online features may be limited, and the game is no longer available for direct digital purchase. : This usually means one of the parts, possibly part08