In order to see which is your product license key, please open BitDefender and locate it on the left side of top bar as highlighted below.
What Operating System do I have?
In order to find out what operating system do you have, please click on Start and right-click on My Computer. Then choose Properties and there you will be able to see what operating system you have.
Contact Customer Care Open an email ticket (fields marked with * are mandatory):
Your request cannot be processed as the license key you used is not valid. Please make sure that the license key you enter in the form matches exactly the one you got when you purchased Bitdefender.
