Right now I use Microsoft Security Essentials, and it works pretty good.
Is there any Antivirus that is free and better than MSE?
Not everybody can run MSE according to other forums I use. When its installed on a Laptop that is not left On, it has to be updated manually. Avira is programmable and updates that are missed due to being OFF will run at startup. Avast is preset to update every 4 hours.