To be able to run the updates you need to Register your Bitdefender and Create an Online Account with Bitdefender . To do this please follow the simple steps below:
How to Register Bitdefender 2010 (all versions)
Open BitDefender and click on 'Register Now' . You find this at the bottom right hand corner.
Please click on 'I want to register the product with a new key', enter (Copy and Paste it to avoid errors) follow the registration wizard to complete your registration.
How to Create a Bitdefender Online AccountOpen BitDefender, then click on Update and enter the requested information (e-mail address and a password at your own choice) in order to create the Online Account.
Thats all that is required and your Bitdefender will be reactivated.