How to activate a Bitdefender Internet Security / Premium VPN key?

 Activating Bitdefender Internet Security / Premium VPN key is really simple. 

1. Visit the Central Bitdefender site. 
2. Register your Bitdefender account. 
3. Click on the My Subscription tab.
4. Click on the Activation Code button in the upper-right corner and enter your code. 

The key is not working 

If you have activated the key according to the guide but the code appears not to work, please check what type of error message you receive and depending on it follow the appropriate instructions:

• My key is Duplicated / Already used
• My key is Invalid
• My key is region locked / can't be activated in my country
• My key activated a different product
• My key did not activate all of the content