Avast Free Antivirus
A newer version of Avast Free Antivirus is available.Or, Learn More About Avast Free Antivirus
Full user review
Let's see: it's free. it's very lightweight. it's fast. The interface is quite elegant too.
None yet. Works perfectly, even when I'm doing highly intensive graphics and audio work with many windows open.
I had been using Kaspersky for the Mac and had to give it up. It hogged every bit of free memory it could find and my opt-of-the-line iMac was constantly freezing. I'd used Avast on Windows for many years and it works beautifully on the Mac. Great product.