You need to first select your game. After you enter the generated cd key in this field then click on the "Validate" button to check your game key is valid or not.
If the generated game key is valid, then you can continue to activating cd key. Activating cd key is easy and safe, you need to complete an easy task from our sponsors and your cd key will be automatically activated. Below you can find detail instructions.
Now to activate your cd key, you need to follow the 7 necessary steps given here.