how to download gta san andreas?

[MikeL]

When you buy the game the instructions for downloading will be displayed.
Are you sure you have a machine that can play it?
San Andreas specs.

Caution: Windows 8 is a touch screen operating system, that has been adapted to keyboard and mouse. Like Windows7 killed the DOS games, Winows 8 is trying to kill the older PC games.
However, while few Win8 players have had hit & miss results getting games to play, no one has come up with a definite way to do it, that works on all machine configurations.

Install the game using "Admin Privileges". Into a computer with these stats:
Recommended System Requirements:
Intel Pentium 4 or AMD Athlon XP processor (or better)
384(+) MB of RAM
16x DVD-ROM drive
4.7 GB of free Hard Disk space for a full install
128(+) MB Video Card with DirectX 9 compatible drivers ("GeForce4" or better)
DirectX 9 compatible Surround Sound Card
Game pad** with twin axis analog controls (USB or Joystick Port)
Keyboard & Mouse
** I suggest 12 buttons minimum. I use the Logitech Dual Action â„¢, as it works straight from the box without any special drivers. Seitek also nice. Attempting to use console controllers may take hours to find the right driver(s) and then still not work.

Get by with Minimum System Requirements
•1GHz Intel Pentium III or AMD Athlon Processor
•256MB of RAM
•8x DVD-ROM Drive
•3.6 GB of free Hard Disk space for a minimal install
•DirectX 9 compatible Stereo Sound Card
•64MB Video Card with DirectX 9 compatible drivers ("GeForce3" or better)
• DirectX 9 compatible Stereo Sound Card
and a Keyboard & Mouse

OR you can steal (warez/torrent/pirate) the game for 'Free' and a couple of weeks later when the malware/virus kicks in try to figure out what went wrong.