While it is a good program when it runs, Bitdefender is one of the only programs I have known that does not remember and save user settings and preferences. It does not even have the ability to export or save those settings. This is 2016 not 1998. I have several computers with lots of programs. i set the firewall rules for most applications because each one can install unwanted upgrades or do things I don't want. With Bitdefender I must re-enter all my settings each time it upgrades. I would not recommend or use this program until they have fixed this basic error.
BD is very good against known malware. But it has weak behavior blocking, so you are vulnerable to zero-day ransomware.
Kaspersky is much better in this aspect.