Recently, I find Avast using too much CPU on my computer, then find some methods solved it.

Avast antivirus software is one of the most popular antivirus software in the world. It can block viruses and spyware, surpassing competitors’ paid products, making it one of the most popular antivirus software in the world.

Firstly, let me show you what is Avast doing in the background, then you will know why avast using too much CPU.

Why Avast using too much CPU?

I have installed the free version of Avast and I find avast high CPU usage. Sometimes, it uses a constant CPU of 35%. However, when I opened the user interface, there was no indication that it was performing any scans backgrounds.

So, I’m trying to take some diagnostics on the system to stop Avast using too much CPU, but I don’t know how to fix it. The only option I saw was to temporarily disable the avast behavior shield, but that didn’t help.

Then I searched for more information to know why avast service high CPU usage, and found that the Avast monitoring everything that goes on in my computer.

I also found that my Avast installed some unneeded components. In fact, it not need to install some components.

How to fix avast high CPU usage?

I (ETBye) found many people recommend four solutions to fix avast service high CPU usage issues. The following are the solutions, and I fixed the avast using too much CPU by solution 1.

Solution 1: Remove Avast Cleanup

Most people recommend removing Avast Cleanup to solve this problem. Avast Cleanup is a component of Avast that runs in real-time to free up to certain resources allocated by other background applications.

However, Avast Cleanup is always running to perform its tasks. Anything in this process may consume a lot of CPU resources and cause a heavy burden. Therefore, the best way is to uninstall this component.

How to remove Avast Cleanup?

Step1: Open Avast user interface

Step2: Navigate to Settings and click the Components tab

Step3: Click the down arrow next to the component you want to delete, here, this component to be deleted is Avast Cleanup

Step4: Click Uninstall Component

Step5: Then click OK to confirm the uninstallation of the Avast Cleanup component. If Avast pops up a suggestion that you use this component, please ignore it.

Step6: Restart the PC to see if Avast Cleanup has been removed. Then check if fixed the avast using too much CPU issue

Avast has many different components. If this solution does not work for you, you can consider removing the Avast Behavior Shield component in the same way as remove Avast Cleanup. Because the avast behavior shield memory cost is also a bit high most time.

Solution 2: Disable Avast Behavior Shield

What is Avast behavior shield?

Avast Behavior Shield is an important component of Avast, which also called Aswbidsagent service.

What does Avast behavior shield do?

The Avast Behavior Shield integrated into the Avast system to scan programs and protect the system from ransomware, zero-second threats, malware, etc.

So, in most cases, Avast Behavior Shield memory usage is a bit high. In fact, it’s ok to disable avast behavior shield to fix some error with it.

How to disable Avast behavior shield?

Step 1: Open your Avast

Step 2: Click Settings and enter the Components panel

Step 3: Find the avast Behavior Shield, then click the right button.

Step 4: Select a time option for how long you want to disable Aswbidsagent.

Step 5: Click OK. It’s done.

This solution can fix the avast behavior shield CPU usage issue, hopefully, it can also help you fix the avast using too much CPU issue.

By the way, we recommend keeping the Aswbidsagent service running, and disable the following additional Avast component:

  • Browser protection
  • Avast SecureLine
  • Passwords
  • Secure Virtual Machines (if present)
  • Secure DNS

In case, if this method doesn’t work, try the following one.

Solution 3: Adjust Avast Web Shields settings

You can try to adjust the Avast Web Shield setting to fix avast service high CPU cost. Just follow the step to adjust the Web Shield setting:

Step 1: Open Avast

Step 2: Go to the Setting panel, then click Active Protection

Step 3: Web shield – Customize and Main settings.

Keep the following setting deselected:

  • Use intelligent stream scanning
  • Enable HTTPS scanning
  • Script scanning

Step 4: Restart your computer.

In this way, you only remove the few features, and all the important Avast components will remain unaffected. Then Avast can protect your computer at the same level.

Solution 4: Update Avast to the latest version

Each version update of Avast is mainly to optimize software functions and reduce the consumption of memory and CPU resources. The newer Avast, the avast behavior shield CPU is lower, the avast behavior shield memory usage is also lower.

Therefore, updating Avast to the latest version can make Avast need less memory and CPU resources when protecting your computer system.

How to update Avast?

Step 1: Open your Avast

Step 2: Click the Update tab

Step 3: Find the Update the program to the latest version button.

Step 4: Follow the instruction to finish updating.