
Software version, Compatibility, Release Date, Size, Download. Avast Free Antivirus 20.10.2438 Beta, Windows XP, Windows Vista, Windows 8, Windows 7,. However, users with an older version of the software will need to uninstall that version first, before installing the new program. Does Avast Free Antivirus scan. Avast Free Antivirus. AVAST Software. 4.0. Downzen rating. 3.5. Users rating. 10.9K Download Version. 20.1.2397. Last update. 2019-05-21. Downloads. 10.9K. License. Free. Size. 216KB. Requires Old versions Avast Free Antivirus.