

From the newly appeared context menu, click on Settings.Open up Avast and click on the Action Menu from the top right-hand section.Here’s a quick guide on repairing the Avast application using the built-in troubleshooter: If this scenario is applicable, you can fix the issue by forcing the Avast application to repair itself via the troubleshooting menu. In most cases, the issue is reported to occur after an unexpected machine shutdown or after a security scanner ended up quarantining some items that were used during the updating function. Updating Avast Antivirus to the latest version Method 2: Repairing the Avast applicationĪ partially corrupted Avast application can also contribute to the apparition of the ‘ Virus definitions update failed. If you are prompted to restart do so, then open the application once again and see if the issue is resolved.Inside the Update sub-tab, just click on the Check for updates button and wait until the process is complete.Once you’re inside the Settings menu, select the General tab from the list of main tabs, then select the Update sub-tab.

After you do this, click on the Settings menu from the newly appeared context menu.Open Avast Antivirus and click on the Menu icon (top-right corner).
