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
Run the game using the desktop shortcut or the forza_x64_release_final.exe in the installation folder. File: Forza.Horizon.3-CODEX.zip ...
Right-click the .zip file and extract the contents using 7-Zip or WinRAR. Copy all files from that folder and paste
To prevent the game from trying to connect to official servers, it is recommended to block the game's .exe in your Windows Firewall settings . 5. Launching the Game File: Forza.Horizon.3-CODEX.zip ...