threat defense

Computer or should we take to maintenance, I have no habit of antivirus regularly, so often in my computer cannot run will to my computer’s threat defense is under attack, if I can take to maintain my threat defense, why wouldn’t be my computer can not be used. So we in with their own things, be sure to carefully such maintenance, otherwise the end still don’t know how, in fact, I think the computer inside threat defense must be the best choice to, so we in time will feel very reliable and safe, but sometimes we after many things will forget the the to do those things.