New
#1
If they had tested for false positives then Defender would have come out the absolute winner, easily. I don't know why these tests don't do that, frankly, because nothing is so irritating as a false positive--I've been using MSE/Defender for many years and cannot recall a single false positive (remarkably enough)--but I read about them constantly popping up for other people using different programs, just like Kaspersky's & Norton's. A false positive, next to an actual virus or malware infection, can be a bad experience because the victim doesn't know what to do when his AV program is telling him one thing and the source of his file is telling him it is safe to ignore it.