here below are some instructions on how to activate your license
1- Go to the following address: https://central.bitdefender.com/
2- Register a New Account and Sign in.
3- Click on "My Subscriptions" tab on the left bar.
4- Then, click on "Activation Code" button in the top right and enter the purchased key.
5- In the end, you will be able to see your subscription in "My Subscriptions" tab.
6- To Install the program, go to "My Devices" tab on the left bar and click on "INSTALL PROTECTION".