threat defense

A few days ago, I put my computer to lend a friend using her, he said to me that my computer is especially good, he asked me what it is, I feel the computer is not particularly well, and I also have some friends don’t understand that, then I ask clear, I know that is because my computer installed threat defense, so I will be so fast, so I put the threat defense to recommend to friends, since the computer installed threat defense, my computer is not out of any problem. So I think threat defense is still very good, because this may be the fastest. My computer.