If you need to conduct a repair on Avast antivirus then in that case right click on your Avast antivirus icon in order to open it then from the drop down menu select “uninstall” as you see the user account control dialog box then click “yes” then as you see the set up wizard then click the “repair” option then wait for the repair process to complete and if you want to visit our website so click here Avast Phone Number & http://www.avast-phone-number.com/