Windows only: The newest version of the popular Avast Antivirus is finally available for download. It's lighter, faster, and more feature-filled than ever, bringing a new behavior shield ...

Note: Fans of the avast! free antivirus offering can now get the same protection in a streamlined for-pay suite. Check out our review of avast! Internet Security 5.0.

Avast acquired rival free antivirus company AVG in 2016. Fans of both companies can rest easy; years and years later, there's still no plan to merge them into a single product.

Avast Free Antivirus 5 took the top spot in our late 2010 roundup of free antivirus software. It provides good, all-around malware detection in a speedy, well-designed package.

Another new feature in Avast Free Antivirus 7 is a cloud-based file reputation system called FileRep, which alerts users about suspicious browser downloads and integrates with Avast’s ...

Avast Free Antivirus for Mac Beta is compatible with all Macs running Mac OS X v10.5 and later and is available as a free download (direct link) from the company’s website.

If avast!'s very good malware cleanup doesn't recognize a suspicious file, its built-in automatic sandboxing can keep that file from doing harm. It's one of several good choices for free antivirus ...

Free Antivirus 7 (free, direct) among them, perform very well indeed. In the previous update, avast! added automatic sandboxing, a feature previously found only in avast!'s commercial products.