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Avast Behavior Shield keeps turning off

What is Avast Behavior Shield? Why does Avast behavior Shield keep turning off? How to solve this problem? This post will demonstrate you the answers. Besides Avast antivirus program, you can also try MiniTool software to safeguard your PC.

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What Is Avast Behavior Shield?

Avast is one of the most popular antivirus software. It can be used on Windows OS, macOS, Android or IOS. It provides computer security, browser security, antivirus software, firewall, anti-phishing, antispyware, and other security services.

The behavior Shield is an additional layer of active protection in Avast Antivirus which can monitor all processes on your PC in real-time for suspicious behavior that may indicate the presence of malicious code.

The working principle of the Avast Behavior Shield is to detect and block suspicious files based on their similarity to other threats, even if those files have not been added to the virus definitions database.

The Avast Behavior Shield is turned on by default since it can provide protection for your computer and it is also strongly recommended to do that.

However, some users complain that the Avast Behavior Shield keeps turning off when they launching the software or after restarting the computer. And they mentioned that they did not change the default settings of Avast manually.

Thus, why does Avast Behavior Shield keep turning off?

The problem that Avast Behavior Shield keeps turning off may be caused by various reasons. For example, there exists a bug in the Avast Behavior Shield. What drawbacks will bring if the Avast Behavior Shield turns off? As a matter of fact, if it is turned off, your computer will be at high risk.

Therefore, what you need do is to fix the problem that Avast Shield keeps turning off. Hence, in the following section, we will show you the solutions.

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How to Fix the Issue of Avast Behavior Keeps Turning Off?

In this section, we will walk you through how to fix this Avast problem with several solutions. If you come across the same issue, try these solutions.

Solution 1. Update to the Latest Version

The first solution to solve the issue that Avast Behavior Shield keeps turning off by itself is to update this software to the latest version. Some users have reported that the Avast Behavior Shield has stopped working after they restart or turn on their systems, especially those users who are using Avast 2018.

And, Avast developers also have noticed the error where the Behavior Shield is turned off by itself and they have tried to fix this problem in the latest version.

So, in order to solve the problem that Avast Behavior Shield turns off, you can try to update your Avast to the latest version.

And now, we will show you the detailed operation steps to do that.

Step 1: Open Avast Antivirus Program

Click the Avast icon in the system tray to or the shortcut of Avast on the desktop to enter its main interface.

Step 2: Update Avast

  1. After entering its main interface, click Menu on the right corner to continue.
  2. Choose Settings to continue.
  3. In the pop-up window, go to the Update Then choose CHECK FOR UPDATES to continue.
Note: They are two options. One is related to the update of the virus definitions, the other one is related to the update of the program itself. Some users say that just updating the program itself can fix the problem that Avast Behavior Shield keeps turning off, but it is recommended to choose to update both sections.

choose check for updates

After you have updated to the latest versions, run Avast again to check whether the Behavior Shield still keeps turned off by itself.

If this solution is not effective enough, you can try the following solutions.

Solution 2. Repair Avast Antivirus Program

The second solution to fix the problem that Avast Behavior Shield turning off is to repair the Avast antivirus program.

Now, we will show you the detailed solution.

Step 1: Launch Avast

Click the Avast icon in the system tray or click the shortcut of Avast on the desktop to launch it.

Step 2: Start to Repair Avast

  1. After entering its main interface, click Menu button on the right corner to continue.
  2. Then click Settings.
  3. Go to the Troubleshooting tab and then click REPAIR APP to continue.

click repair app to continue

The repairing process will take some time and you need to wait patiently. After repairing, reboot the Avast antivirus program and check whether the issue of Avast Behavior Shield off at startup is solved.

If this solution is not effective enough, try the following solution.

Solution 3. Run Avast Clear Tool and Reinstall Avast

If the above methods cannot solve the problem that Avast Behavior Shield keeps turning off, you need to try this solution. You can perform a clean installation of the latest versions. To do that, you need to delete all traces of the Avast on your computer. Thus, you need the help of Avast Clear tool which can help you to remove all traces of Avast on your computer and then reinstall the Avast.

Now, we will show you the detailed operations on how to perform clean installation to solve the problem Avast Behavior Shield turned off.

Step 1: Install and launch Avast Clear tool

  1. Click here to download the Avast Clear tool which can remove traces of Avast on your computer.
  2. Install it.
Note: When installing the Avast Clear tool, a notice will pop up which recommends you to run this tool in safe mode. Just click No to install this tool in a normal state.

Step 2: Uninstall Avast

In the pop-up window, you need to confirm the program installation directory. If they are not correct, change it first. Then click Uninstall to continue.

check installation directory and click Uninstall

Step 3: Reinstall Avast

After uninstalling the Avast completely, you can try to download it from the Internet and reinstall it again.

After reinstalling, open it to check whether the problem that Avast Behavior Shield keeps turning off by itself is solved.

Further Reading:

Besides the problem that Avast Behavior Shield keeps turning off, you may encounter some other Avast problems, such as the Avast not open. If you encounter this problem, you can try these solutions, too. In addition, you can also solve it by checking the service status. For more information, you can read the post: Avast Not Opening on Windows? Here Are Some Useful Solutions.

I had encountered the problem that Avast Behavior Shield keeps turning off by itself. Thanks to this post, I had solved this problem after reading it. Click to tweet

How to Safeguard PC When Avast Behavior Shield Keeps Turning Off

In the above part, we have shown several solutions to fix the error that Avast Behavior Shield keeps turning off. From the above part, you can know that the Avast antivirus program may encounter some other problems besides the problem Avast Behavior Shield turned off.

Thus, how can you safeguard your computer especially when the Avast fails to work?

In order to provide better protection for your computer, it is recommended to create a system image. After that, you can keep your PC and data safe even though the Avast encounters errors or some other problems happen.

Meanwhile, how to create a system image? To create a system image, you can take the professional Windows backup software – MiniTool ShadowMaker. It is designed to back up the operating system, partitions, disks, files, and folders.

It is also a clone tool that can help you to clone the OS from HDD to SSD without data loss. So, besides creating a system image, you can also choose to clone the OS to another hard drive so as to safeguard your PC.

With so many powerful features, just get MiniTool ShadowMaker to create a system image or clone the system to another hard drive immediately. So, just click the following button to get MiniTool ShadowMaker Trial or choose to purchase an advanced edition.

Free Download

After that, we will walk you through how to create a system image with the professional backup software so as to safeguard your computer even though encountering the problem that Avast Behavior Shield keeps turning off.

Step 1: Install and launch MiniTool ShadowMaker

  1. Download MiniTool ShadowMaker and install it.
  2. Launch it.
  3. Click Keep Trial to continue.
  4. Click Connect in This Computer to enter its main interface.

choose Connect in This Computer to continue

Step 2: Select backup source

  1. After entering its main interface, please go to the Backup page.
  2. MiniTool ShadowMaker is designed to back up the operating system. So, it chooses the OS as the backup source by default.
  3. Meanwhile, if you want to change the backup source, click Source module to continue.

Step 3: Select backup destination

  1. After selecting the backup source, you need to select the backup destination to save the backup images. Click Destination module to continue.
  2. MiniTool ShadowMaker provides five destination paths to be chosen. You can choose anyone based on your own needs. However, it is recommended to choose an external hard drive. In this way, if your computer is crashed due to virus attack or other reasons, you can restore the computer to a normal state with the system image.

choose backup destination

Step 4: Start to back up

  1. After selecting backup source and destination, you can click Back up Now to perform system backup immediately.
  2. Or you can click Back up Later, but you need to restart in the Manage page.

click Back up Now

Step 5: Create bootable media

  1. When you have successfully backed up the operating system, it is recommended to create bootable media that can be used to boot your computer if it is unbootable or crashed.
  2. Go to Tools page to choose Media Builder feature to continue.

After all steps are finished, you have successfully created a system image. With the system image, you don’t worry the antivirus program not working such as Avast Behavior Shield turned off, system crash, data loss any longer.

With the system backup and antivirus software, you can provide better protection for your computer and keep it safe.

MiniTool ShadowMaker is a user-friendly program. After creating the system image, I don’t worry about data loss or system crash any more because I can use the system image to restore it to the normal state. Click to tweet

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Bottom Line

In conclusion, this post has introduced several solutions to solve the problem that Avast Behavior Shield keeps turning off. If the Avast on your computer has the same problem, try these solutions.

If you have any better solution to solve the issue that Avast Shield keeps turning off, you can share it in the comment zone.

To better safeguard your computer, it is recommended to create a system image with the professional backup software. Thus, if you have any problem with MiniTool ShadowMaker, please feel free to contact us via the email [email protected] and we will reply to you as soon as possible.

Avast Behavior Shield Keeps Turning Off FAQ

How do I disable Avast Behavior Shield?
  1. Launch Avast antivirus program.
  2. In the dashboard, go to Settings.
  3. Then click on Components.
  4. Then double-click on the Behavior Shield.
  5. Click the green switch.
  6. Select Stop Permanently.
  7. Click Yes to confirm the changes. 
What is Avast Behavior Shield?
The behavior Shield is an additional layer of active protection in Avast Antivirus which can monitor all processes on your PC in real-time for suspicious behavior that may indicate the presence of malicious code.
Is Avast Behavior Shield free?
Avast Behavior Shield is an additional layer of the Avast. It comes standards in all Avast versions including the free and paid versions.
How do I completely shut down Avast?
  1. Click the Avast icon from the system tray.
  2. Click Avast shields control.
  3. Then choose Disable permanently.
  4. Confirm your changes.
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