You're looking to download Grand Theft Auto IV (GTA IV) for PC, specifically for Windows 7 32-bit. Here are the details:
If you experience "Incompatible OS" errors or crashes, try these steps: Grand Theft Auto 4 states it is incompatible with Windows 7 Grand Theft Auto Iv Download Pc Windows 7 32-bit
To get the game running on Windows 7, you may need to bypass certain modern launcher requirements or compatibility hurdles. You're looking to download Grand Theft Auto IV
Running a resource-heavy game like GTA IV on a 32-bit system requires careful attention to hardware. The 32-bit architecture of Windows 7 limits the operating system to addressing a maximum of 4GB of RAM, regardless of how much physical memory is installed. Grand Theft Auto Iv Download Pc Windows 7 32-bit