No legitimate portable version exists. Any claim otherwise is a scam.
: Right-click the game in your Steam Library, select Manage > Browse local files to open the folder containing the executable. Current Editions & Pricing Prices and content vary by edition as seen on Xbox.com: forza horizon 5 exe file download exclusive
You can only obtain the full game, including the .exe , from: No legitimate portable version exists
Second gear: where the pavement ends
Q: What are the system requirements for Forza Horizon 5? A: The system requirements include Windows 10 (version 1909 or later) or Windows 11, Intel Core i5-8400 or AMD Ryzen 5 1600, 8 GB RAM, NVIDIA GeForce GTX 1060 or AMD Radeon RX 580, and 80 GB available space. including the .exe