Launch the antivirus and click on the menu icon, which will be on the top-right corner.Steps to update Avast to the latest version The issue occurred as a bad date was being pushed along with the Update, which ended up forcing the virus signature updating function displaying the error even after the Update was installed correctly.Īs this issue is resolved in the latest updates of the Avast, so to fix this issue, you should install an updated version of the Avast program.