My experience for his anti virus softwar in I am use in my life= 1.Kaspersky= I have had this for year and has been great . But is must be noted that I think the recent story its a little spooky , but as an anti virus product it has steered me clear from phishing scams and malicious web sites.it is not too cpu intensive and scans quickly.2.Panda = its is very good anti virus choice. Truthully the easiest antivirus to set up and use, with some best scores in protection and the best value for money.3. G-data = great except that email scanning slows or completely stops outlook from loading .endless processing that goes away its very helful for you.Hope you found it helpful for you.