I have no idea about it. I use Avast. I was suggested by http://www.supportonclick.com to use it when my computer was infected with viruses and it was slowed down completely. If you are in search of an antivirus you can get in touch with them for help. Because I think there is no such anti virus which can protect you fully from virus. But I think the staffs of supportonclick can guide you in choosing the antivirus that will be the best for you.