Download Garena client installer: Download Garena_client installer from surf.sy

After downloading the file, locate Garena_Setup.exe from the directory where you saved the installer then run the file.

The installer will then guide you through step by step on how to install Garena properly

Garena System Requirements
Operating System: Windows 2000, Windows XP, Windows 2003, Windows Vista.
Web Browser: Internet Explorer 6 or Higher.