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You can easily switch from one Bitdefender 2013 product to another.
The three Bitdefender 2013 products you can install on your system are:
If you want to install another Bitdefender 2013 product on your system than the one you purchased, follow these steps:
Open the Bitdefender window.
A link that indicates the number of days left on your license appears at the bottom of the Bitdefender window. Click this link to open the registration window.
Enter the license key and click Register Now.
Bitdefender will inform you that the license key is for a different product and will give you the option to install it. Click the corresponding link and follow the procedure to perform the installation.