Since the last time to the computer installed above a best antivirus for PC later, my computer has changed so fast response, no longer card, I knew I soon install a best antivirus for PC does not like it, though I often in fact, using the computer all day on the computer a lot of things I will not, computers are generally out what problems I do not know how to do, there is a period of time my computer special card, then a friend gave me this is introduced best antivirus for PC, did not think I gave the computer to upload a best antivirus for PC and then after a virus, like my computer, and run also becomes faster. So now I have nothing to give the computer time to kill virus.