1. Log in to your Bitdefender Central account at https://central.bitdefender.com/. If you don’t have an account, choose to create one.
2. If you don’t have any active subscriptions in your Bitdefender Central account, as soon as you sign in you will be prompted to either activate your new subscription or to buy Bitdefender. Click ACTIVATE YOUR SUBSCRIPTION.
3. Input the activation code from the confirmation e-mail received after purchasing
4. Click ACTIVATE to continue.
5. Choose how you would like to use the code, and then press the CONFIRM ACTIVATION button.