... - File: Forza.horizon.3-codex.zip

Your antivirus or Windows Defender may flag the crack files (like SteamApi64.dll ) as a false positive. If the game doesn't launch, check your Windows Security Protection History to restore any quarantined files.

Copy all files from that folder and paste them into the main directory where you installed the game. Confirm "Replace files in the destination" when prompted. 4. Important Prerequisites File: Forza.Horizon.3-CODEX.zip ...