First, you will need the Daemon Tool and WinRAR (or similar software) before you start installing the game. If you do not have them, you can download from here:
(Option Step) Daemon Tool
(Option Step) WinRAR
Installation Instructions
1. Extract files
Always remember to turn off the Firewall as well as Antivirus before extracting and installing, as they will block or delete cracked files during extracting/installation. (If you want to ask why this happens, you should read F.A.Q)
After extracting .rar files, there will be 3 cases:
2. CASE 1: You get the .iso file (or mds, cue, ..) after extracting
Enjoy ^^