GTA IV is a paid title developed by Rockstar Games . Any "free" download from a non-official source is considered pirated software.
If you are checking if your PC can handle the game, the requirements are relatively low by modern standards: Windows 7 or newer. grand-theft-auto-gta-4-free-download-only-7-51gb
At least 1.5 GB of RAM (though 4 GB+ is recommended for smooth play). Graphics: 256MB VRAM (GeForce 7900 or Radeon X1900). Where to Safely Buy GTA IV GTA IV is a paid title developed by Rockstar Games
The legitimate Grand Theft Auto IV: The Complete Edition on Steam has a download size of approximately 19.70 GB . A 7.51 GB file is heavily compressed and may be missing essential game files like audio or cutscenes to achieve that size. grand-theft-auto-gta-4-free-download-only-7-51gb