I've been using DB Free for at least a year. About a week ago, I discovered that I couldn't print on my wireless Canon printer (model PIXMA TS6020). Prior to this I had NO problems with my wireless printer. The Canon tech rep discovered that it was my AV program. I have removed and reinstalled BD Free at least 4 times with the same results. I have searched the internet for advice on how to create an "exception" (exclusion) for a wireless device and it appears that the paid versions of BD do have a method for creating an exception for a specific wireless device. The BD Free version ONLY has the ability to create and exclusion for a URL not (e.g.) an IP address for a wireless printer. I have switched to AVAST and that has no such issues. The creation of an exception was not required. AVAST recognized the printer immediately -- and not as a potential threat.
I'm guessing that a recent update of the BD Free program created this performance issue -- without providing a method to fix it.
As BD Free WAS a great freeware AV, I hate to switch to AVAST, but Bitdefender has not (yet) provided me with a fix.
Louis