First please run the program after downloading it. And please click "Help/Menu > Register..." option to open "Registration" window. Then copy and paste your user name (Purchased Email Address) and license code (Registration Code) in the corresponding text boxes to register. Finally, you will get the full version.
And please pay attention to below points before registration:
1. Please make sure you have downloaded the same program as the one you bought.
2. Please make sure you have the right program with your computer operation system.
3. Please make sure there is no blank before/among the code in the registration code input box.