best antivirus for PC

The computer for a long time all right, but today suddenly a virus, but I did not find the cause of poisoning, to find a lot of methods can be used to consult with friends everywhere, what to do, a friend said to me by best antivirus for PC is particularly good, I was listening to a friend with a best antivirus for PC, did not think of really good, I will be able to direct antivirus success, but also help me find the reason, I think I have the best antivirus for PC no longer have to worry in the computer virus problem in the future, and I have a lot of friends to recommend the anti-virus software to use them they say, very good use. If others have such a situation to be able to use this.