(right-click -> Properties -> Read-only).
To make the game "recognize" the new save, you must match the game's simulated Steam ID to the ID used by the save file. Go to your game installation folder (where the ForzaHorizon5.exe is located). Find and open the steam_emu.ini file with a text editor like Notepad. Look for the line: ### AccountId=0 AccountId=0 Remove the if it’s there to uncomment the line. Change the value to match the exact folder name (the ID numbers) of the save you just pasted. AccountId=123456789 the file and launch the game. Alternative: Save Swapper Tools forza horizon 5 save game codex install