You should install and register the software after download it. Then you can use the full version. After fill in the "User Name/Email Address" and "Registration Code", click the "Register" button to complete the registration step.
a. Please make sure you have downloaded the same program with the one you bought.
b. Please make sure you have the right program with your computer operation system.
c. Please make sure there is no blank before the code in the registration code input box.