Avast Antivirus Home edition is a free antivirus software for all to use only for personal use. It is fully compatible with windows 7 and provides state of the art protection against viruses, worms. Avast also has two other antivirus software solutions Avast Pro Antivirus and Avast Internet Security 2011, but both these versions are not free to download.The Important feature of Avast Antivirus is that it provide an option called Boot time scan which deletes critical viruses.
