When you search for the search results are filled with dangerous third-party websites offering fake "installers" that contain adware, spyware, or worse. Do not download from any site that is not Microsoft or an official source.
: Once complete, restart your PC and launch the game.
Once you have safely downloaded the official installer, follow these steps precisely.
Here’s a draft for a focusing on downloading and setting up Grand Theft Auto: San Andreas with DirectX 9.0 compatibility, aimed at users playing on older or legacy Windows systems.
The -dx9 flag forces the game to use DirectX 9 rendering.