Take precautions visiting websites and opening emails. Anti virus email can only do so much. The problem is when a new virus comes out the company may not patch that virus for a week depending upon how widespread it is. This is why you need to take precautions in between your anti virus updates. Don’t open executable files unless you know the person, you know exactly what they sent you, and you trust that person. Also be cautious with PDF files. If you go to a website that asks permission to download an Adobe file on your computer be sure you know and trust the people that run that website.