In some situations, you may need to reinstall your Bitdefender product.
Typical situations when you would need to reinstall Bitdefender include the following:
you have reinstalled the operating system
you have purchased a new computer
you want to change the display language of the Bitdefender interface
To reinstall Bitdefender you can use the installation disc you purchased or download a new version from this online location: http://www.bitdefender.com/Downloads/
During the installation, you will be asked to register the product with your license key.
If you cannot find your license key, you can log in to https://my.bitdefender.com to retrieve it. Type the e-mail address and the password of your account in the corresponding fields.
If you need assistance on how to install your product, in this article you will find the steps you need to follow.