To buy DRIVERfighter, please do the following: 1. Open DRIVERfighter by locating the program Start – All Programs – Fighters – DRIVERfighter – DRIVERfighter. 2. Choose "Account" in the left menu. 3. Click on the green “Purchase Full Version” button. 4. You will be transferred to our website where you can buy a valid key. 5. Make sure you add your new product key to the program.