How to Fix Avast Behavior Shield is Off Error in 2023 [Latest]

Avast Behavior Shield is Off Error

Avast Antivirus is a renowned cyber security tool manufactured by Avast and available for Microsoft Windows, macOS, Android, and iOS. There is a complimentary and a premium version, both of which effectively protect your PC from internet dangers. If you too have stopped Avast’s problem then you are in right place.

Avast Antivirus Behavior Shield is an additional aspect of continuous security that can track all processes on your PC in real time for suspicious activity that may indicate the presence of malicious viruses. Behavior Shield works by identifying and blocking malicious files based on their similarities to existing threats, even if they are not added to the database of virus definitions. Avast Behavior Shield getting disabled continuously can be due to various reasons.

How to Fix Avast Behavior Shield is Off Error?

It is recommended that you restart your computer before performing any of the recommended troubleshooting methods listed below. This procedure refreshes the operating system and removes any corrupted temporary data that may be the source of the problem. Read this article on how to fix Avast Mobile virus definitions that are not updated.

1. Update Avast:

Update Avast

An older version of Avast may be causing the problem. If your Windows operating system recently received a software update, you should also check if a new version of your antivirus software is available so that it can continue to work properly with Windows.

  • By clicking the Avast icon in the system tray, you can access the Avast user interface.
  • Go to the Update tab and look for two buttons with the text Update.
  • Either of these buttons is for upgrading the virus definitions database, and the other is for updating the software.
  • By clicking on these two update buttons, you can update both the database and the software.

2. Repair Avast:

Repair Avast

Repairing the Avast browser application is the second solution to the Avast problem. To enter the Settings app, click the gear-shaped icon in the lower-left corner of the Start menu. Go to Apps and select it. You should immediately open a list of all the applications and utilities you have installed on your PC, so be patient while it loads. In Control Panel or Settings, look for Avast and click Edit.

To repair it, follow the instructions given below:

  • Run Avast, click the Avast icon in the system tray or the Avast shortcut on the desktop.
  • To continue, click the menu button in the right corner after entering the main screen.
  • After that, go to Settings.
  • To continue, go to the Troubleshooting tab and then select the Repair app.

3. Use The Admin Permission On Avast:

Use The Admin Permission On Avast

This method is similar to the first one. But, you don’t need to go deep with services and such. All you need to do is launch Avast as an administrator. For this, you can ensure the following:

  • Find the Avast launch icon on your PC. This can be a shortcut through the Start menu or elsewhere. Right-click on it and select ‘Run as administrator’.
  • This will not work if Avast is already running in the background. So press CTRL + Shift + ESC to open Task Manager. Find Avast in the list of tasks and right-click on it. Then, select End Task.
  • Now, repeat the first step and see if you can start Avast as an administrator.
  • Once you’ve done that, reactivate Web Shield. See if this option works.
  • You can also grant Avast Admin permission permanently. All you have to do is right-click on the Avast icon and go to Properties. You will find the ‘Run this program as admin’ option in the compatibility tab. Check it, Apply, and then OK to save the changes.
  • Now Avast always runs with admin permissions. This can save you from other errors.
  • But, remember, granting admin permission to Avast means it can make changes to files. This also applies to system files. So, use it only if it solves the problem.

4. Clean Install Avast Antivirus:

Clean Install Avast Antivirus

The last solution to fix Avast Behavior Shield keeps turning off is to uninstall Avast and all its files from your PC and then install the latest version as well. This process is also known as a clean installation. Follow the steps below to perform a clean installation of Avast Antivirus:

  • First of all, you need to download Avast Uninstall Utility.
  • When you download the file, open the file to run the software.
  • In the pop-up Avast Uninstall Utility window, you need to tap on Yes to boot Windows in Safe Mode. Click on Yes again to confirm.
  • Windows will now boot in safe mode and the uninstall utility will open automatically.
  • In the utility window, make sure you select the correct folder where Avast Antivirus is currently installed.
  • Tap on Uninstall to completely remove Avast Antivirus and associated files. Tap on Yes to confirm the uninstallation.
  • When the process is complete, tap on Restart in the pop-up window.
  • When your PC restarts, click on this link. Next, tap on Free Download to download the latest version of Avast Antivirus.
  • Now open the downloaded file to run the installer. Follow the on-screen instructions to complete the installation.
  • Open avast and check if the avast behavior shield has stopped working problem is solved.


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