threat defense

Although before also heard in the threat defense, but I’ve never used this threat defense, until a few days ago I went to my friend’s house, because with his boring machine while playing online games, and found my computer for more than my good, I asked friends of the machine is not long before buying, then I realized that it was because of the family machine installation of the 0000, ha ha, really did not expect this threat defense after installation can put those viruses, hidden inside the machine all to kill it, but also regular automatic updates because something useful. Install the threat defense of my friends usually do not how to pipe machine.