: You can purchase and download the game directly from the official Rockstar Games website .

Installing "downgraders" (to use older mods) often involves replacing this file. If the version doesn't match your game files, it will crash. How to Safely "Download" and Restore the File

If you already own the game on Steam or the Rockstar Games Launcher , you can automatically recover a missing LaunchGTAIV.exe:

: If the game crashes, right-click LaunchGTAIV.exe , go to Properties > Compatibility , and run it for Windows 7 or Windows 8 . Optimizing for Performance