Some files may not be detected by BitDefender even if they are malicious. This is called a false negative and usually occurs when the malware uses new (unexplored) techniques.

There is a possibility that BitDefender will report a legitimate file as being infected. This is called a false positive and usually occurs when BitDefender decides that the file behaves like a malware.

When scanning with BitDefender, you may come across some items that are marked as "password-protected", which BitDefender reports as potential threats

Provides answers to the most frequently asked questions.

By having a BitDefender Online Account your main benefits are: high priority in support as well as the best location to store your license key, purchase information and any other important detail regarding your product.There are 3 possible main error messages when trying to log-in into your BitDefender account.

How can I make the Online Scanner run under Windows Vista?

Install for 2011 How to upgrade for free from an older version to Bitdefender 2013?