Avast, which is a good antivirus company, and it has taken the top of the list in the last couple of years. It is a very powerful light antivirus on the Microsoft Windows systems. They have such a good bargain on their website and it's a free 60 days trial for the full product "Avast Premier" which is their best product and it contains all you would need for security. What you would need is a verified Paypal account or basically verify your card for a subscription because they normally expect people to continue with the auto-renewal system and pay when the 60 days are over, but they also give you the option to cancel the subscription and auto-renewal and you can have the free 60 days license for free without any problems. It's good that they have such an offer, you can look more into it by going to their website. The link:Please Log In to view this link! Enjoy and I hope you have a nice day!