Avast Behavior Shield causing high CPU usage

Avast Behavior Shield is a program that monitors your computer for potentially unsafe behavior and blocks it. It can cause high CPU usage when you’re using other programs at the same time.

The “high cpu usage zoom” is a problem that many users have been experiencing. Avast has released an update that should fix the issue, but if it continues to be a problem, you can try disabling the program.

Avast Behavior Shield causing high CPU usage


Loredana Harsana (Loredana Harsana)

Expert in Windows and Software

Loredana is a dedicated writer who is fascinated by computer software and technology. She began blogging about smartphones when the Samsung Galaxy S II was the most popular device on the market, and… Read more

  • Because it performs tasks like background scanning and malware removal, you’ll find Avast utilizing the majority of your CPU resources.
  • If you’re worried about the effect on your computer’s resources, seek for antivirus software that has a minimal footprint.
  • It is advised that you either update to the most current version of your antivirus program or disable it entirely.



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Avast Behavior Shield is one of your computer’s built-in security tools that monitors real-time processes and alerts you when you download a potentially hazardous file.

When an infected or malicious file is downloaded to your computer, Behavior Shield compares it to the Avast database and prevents or deletes it if the file is deemed to be similar to previously known threats.

Because the operations demand computer resources, they might rapidly consume a large portion of your CPU power, causing your machine to slow down.

The Behavior Shield is running as aswidsagenta.exe in Task Manager. Even if this has no effect on your computer’s performance, you may still turn it off by following the steps given below.

For the time being, let’s attempt to figure out why this feature is using so much CPU. Keep up with us!

Why does Avast Behavior Shield take so much of your CPU?

Because Avast is always executing activities such as background scanning for viruses and malware, virus eradication, real-time scanning, and cleaning, it consumes the bulk of your CPU resources.Avast-Behavior-Shield-causing-high-CPU-usage

This activity is undoubtedly required to keep your system secure from attacks, but when it consumes 100 percent of the CPU, it becomes a source of frustration.

It is possible to tackle the issue of high CPU consumption both manually and automatically. On the other hand, if you’re looking for a way to save time, we suggest using the Advanced System Optimizer instead.

With this one-click PC cleaning and optimization solution, you can fix the most common Windows problems. It also fixes a defective Windows registry, which is the most common reason of a 100 percent CPU use.

You may also recover storage space, optimize disk space, manage system resources, increase game performance, and conduct a range of other activities.

It is recommended that Avast’s Behavior Shield be left switched on since it is a helpful tool, particularly with the introduction of its 2017 edition.

Customers, on the other hand, may quickly turn off the antivirus because of bugs and vulnerabilities that lead it to malfunction.

How can I get Avast’s Behavior Shield to stop using so much CPU on Windows 11?

1. Update your antivirus software.

  1. Go to the Avast website. It should be on the taskbar if it has already been started. Go to the Avast Menu button by double-clicking.1640164474_870_Avast-Behavior-Shield-causing-high-CPU-usage
  2. Simply choose the Settings option from the drop-down menu.1640164474_235_Avast-Behavior-Shield-causing-high-CPU-usage
  3. Then click the Update button on the General tab. The most recent version has two update buttons. You may use one of these buttons to update the virus database. Another option is to upgrade the software.1640164474_93_Avast-Behavior-Shield-causing-high-CPU-usage
  4. To update the database, first update the software, then return to the settings and update the database.1640164475_379_Avast-Behavior-Shield-causing-high-CPU-usage

2. Take use of the built-in troubleshooter

  1. Go to the Avast website. It will appear on the taskbar if it has been started. Go to the Avast Menu button by double-clicking.1640164474_870_Avast-Behavior-Shield-causing-high-CPU-usage
  2. Select the Settings option from the drop-down menu.1640164474_235_Avast-Behavior-Shield-causing-high-CPU-usage
  3. Then click the Troubleshooting icon on the General tab. 1640164475_711_Avast-Behavior-Shield-causing-high-CPU-usage
  4. Scroll down and click on the green Repair app option.1640164476_736_Avast-Behavior-Shield-causing-high-CPU-usage

3. Make use of the Command Prompt

  1. To enter the Search bar, press Windows + S, then type cmd, then right-click on the most relevant result to execute it as an administrator.1640164476_763_Avast-Behavior-Shield-causing-high-CPU-usage
  2. Now write or paste the following command into the command prompt and hit Enter: C:/ProgramData/AvastSoftware/Avast1640164477_688_Avast-Behavior-Shield-causing-high-CPU-usage
  3. You’ll now need to access the avast5.ini file. After you’ve opened it, click Insert or put the following command into the line: [GrimeFighter]: ScanFrequency=999

4. Turn off Mail Shield

  1. Go to the Avast website. It should be on the taskbar if it has already been started. Go to the Avast Menu button by double-clicking.1640164474_870_Avast-Behavior-Shield-causing-high-CPU-usage
  2. From the drop-down menu, choose the Settings option.1640164474_235_Avast-Behavior-Shield-causing-high-CPU-usage
  3. Now go to the Protection menu, choose Core Shields, and scroll down to the Mail Shield option.1640164477_0_Avast-Behavior-Shield-causing-high-CPU-usage
  4. Uncheck all of the options after you’ve done that. It may ask for the time you want to disable it when you’re deactivating it. Select Indefinitely from the drop-down menu. The mail shield will be permanently disabled as a result of this action.1640164478_697_Avast-Behavior-Shield-causing-high-CPU-usage

Now restart your computer to make sure the changes took effect, and then check the Avast app to see whether the CPU is still overloaded.

What are the advantages and disadvantages of Avast?

As shown by its millions of users and global presence, Avast is one of the most commonly used free antivirus solutions available today. The program works with Windows, Windows Server, Mac OS X, and Android devices.1640164478_708_Avast-Behavior-Shield-causing-high-CPU-usage

In recent AV-Test trials, Avast Antivirus received 5.5 points in the Performance area four times out of five. It is one of the lightest antivirus apps for the PC, with a single flawless 6.0 score.

Avast, on the other hand, was mired in a crisis in 2020 when it was revealed that the company had sold personally identifying information about millions of its customers to tech and advertising firms like Google.

Take a look at our article on five of the best antiviruses compatible with Windows 11 for additional information and more antivirus suggestions.

Alternatively, to minimize future computer slowing, read our post on ten of the best antivirus software with minimal CPU utilization.

Finally, people who followed our advice on how to repair excessive CPU utilization in Windows 11 benefited from it. Make sure to check it out as well!

Let us know which approach worked best for you and which antivirus you will continue to use in the comments area below.

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Frequently Asked Questions

How do I stop Avast from using so much CPU?

A: Avast is a very resource intensive antivirus program. There are two ways to lower the amount of CPU usage associated with it. The first method is by limiting which applications and processes could run concurrently, while the other option would be to try disabling some of its features that use more processing power in order for you computers resources will remain available when not running an application or process from Avast.

Why does Avast use so much CPU?

A: Avast Antivirus uses a lot of CPU because it is constantly scanning your computer for viruses and other threats. It also has to scan the internet, so its CPU usage will be high when this happens.

How do I turn off Avast Behavior Shield?

A: In order to turn off Avast Behavior Shield, you need to go through the settings on your computer. You can find this in Control Panel under Security and Firewall. There are a plethora of options here that will allow you to disable or change how these features work.

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