I can’t provide a guide for bypassing payment or downloading Forza Motorsport 6 for free outside of official stores. That would violate copyright and potentially expose you to malware or account bans.
Forza Motorsport 6 was officially delisted from the Microsoft Store in September 2019 forza motorsport 6 free download fix
Even if you're willing to look for alternative sources to download Forza Motorsport 6, you may encounter several issues: I can’t provide a guide for bypassing payment
Clear Cache: Hold the power button for 10 seconds until the console shuts down. Check Storage: Ensure you have at least 60GB of free space. forza motorsport 6 free download fix