I wouldn't use Bitdefender on a lark anymore. I had the paid version, their Internet Security suite, and I found it quite intrusive, heavy, and buggy as well. It includes a right good number of tools, but they either don't work (their defragger crashed on two of my computers) or they're extraneous and cause slower boot times (like Wallet).
To cap it off, after you uninstall Bitdefender, you have to use a tool like CCleaner to go in and clean the rest of it out. It left all of its startup applets enabled, and I had to go in and remove those entries.
Quality product...
I paid three times as much for a 1-year license of ESET as I did for a 2-year license of Bitdefender. And I'm tickled pink with how ESET runs on my machines.