: Open the setup.exe or install.bat file inside the folder.
The "Highly Compressed 700MB" version is not an official release from Rockstar Games. Instead, it is a created by various third-party groups (such as Mr.Ghost, BlackBox, or Ocean of Games). Using advanced compression algorithms (like WinRAR or 7-Zip with ultra settings) and stripping away certain non-essential files, these repackers manage to reduce the game’s footprint from several gigabytes down to approximately 700MB. Gta San Andreas Highly Compressed 700mb