A user can easily update Avast antivirus free, for that it is advisable the user puts a set up of automatic updates. First of all right click on the Avast icon and get that opened from the menu. Form the main menu select “settings” then in the left pane click “update” from there you can select the set up for updates as per your preference, though automatic updating is recommended If still you are stuck in any confusion then to get that cleared connect with the technicians at Avast phone number & http://www.avast-phone-number.com/