How to: Fix Avast Antivirus High CPU Usage

How to: Fix Avast Antivirus High CPU Usage

Here we can see, “How to: Fix Avast Antivirus High CPU Usage”

  • Avast’s high CPU consumption is a significant issue that can cause your computer to shut down.
  • It’s possible that uninstalling the Avast Cleanup program will restore everything to normal.
  • You should also consider updating your Avast antivirus software and malware definitions to the most recent versions.
  • Repairing the antivirus application is also a viable option for swiftly resolving the issue.

First and foremost, Avast’s high CPU consumption is to be expected, as the program can demand a lot of resources while scanning your system.

However, it can be a problem if you see an error message claiming Avast service 32 bit high CPU even though Avast is turned off.

If Avast is taking too much CPU resources, don’t uninstall it just yet. Instead, troubleshoot it with these strategies to solve Avast.

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What can I do about Avast’s high CPU usage?

1. Remove the Avast Cleanup tool from your computer

  1. Then, on your PC, open Avast.
  2. Click Menu and then Settings on the Avast interface.
  3. Then, on the left sidebar, go to Components.
  4. To uninstall Avast Cleanup, go to the Components tab and click the downward-facing arrow below Uninstall component.
  5. Then, click the OK button to confirm the procedure at the bottom of the page.
  6. Restart your computer at the end.

You should no longer have the Avast.exe high CPU problem after successfully uninstalling the Avast Cleanup program. Otherwise, move on to the next step.

2. Keep Avast up to date

  1. On your computer, launch Avast.
  2. After that, go to Settings and choose Menu from the dropdown menu.
  3. Navigate to the General tab in the menu and select Update on the right side of the page.
  4. What you want to do now is update both the database and Avast itself. There is two Check for Updates buttons on this page for upgrading both.
  5. If the virus definitions or application are out of current, run the update; when it’s finished, the avastsvc.exe high CPU utilization error should be gone.

This problem can most likely be resolved by updating Avast and its virus definitions, so give it a shot. It’s safe to say it won’t cause any harm.

3. Edit avast5.ini to fix the Avast service’s high CPU usage

  1. Go to your C: directory in File Explorer.
  2. Next, go to the following directory: C:\ProgramData\AvastSoftware\Avast
  3. Next, open the avast5.ini file in the Avast folder and add the following line to the end of it: [GrimeFighter] : ScanFrequency=999
  4. Finally, save and reboot your laptop after saving the avast5.ini file.

4. Reinstall the Avast antivirus software

  1. In Windows search, type control panel and select Control Panel from the results list.
  2. Select Control Panel’s Category view from the upper right-hand corner, and then choose to Uninstall a Program from the Programs category.
  3. Locate Avast at the bottom of the list. Then, change the Avast application by right-clicking on it.
  4. The Avast uninstall wizard screen will appear next, with three options: Update, Repair, and Modify. Choose Repair and then click Next.
  5. Follow the wizard’s instructions, and Avast will restart with the Avast high CPU utilization issue solved.

Repairing the Avast program will resolve the high CPU utilization issue while also improving the app’s overall functionality, so give it a shot.

5. Turn off the Avast Screensaver scanner

Select any file on your PC and right-click it. Then, select Scan selected objects for viruses to run an Avast virus scan on this file from the choices.

When you choose to scan a file, Avast will show you the results after a while. In addition, other running scan procedures’ findings will also be displayed here.

After that, look for the Avast Screensaver scan and select Stop to end it.

When the Avast service uses a lot of CPU, it slows down your PC’s performance and can lead to overheating and other problems.


I hope you found this guide useful. If you’ve got any questions or comments, don’t hesitate to use the shape below.

User Questions:

1. What is the source of my antivirus’s high CPU usage?

The real-time function, which is constantly scanning files, connections, and other associated apps in real-time, which is what it is supposed to be doing, is one of the two most common reasons for it to be consuming high CPU utilization (Protect In Real Time).

2. How can I reduce my antivirus’s CPU usage?

Antimalware Service Executable often causes considerable memory use while Windows Defender is doing a thorough scan for most individuals. We can fix this by scheduling the scans for a time when you’re less likely to notice the impact on your CPU.

3. Is Avast causing your computer to slow down?

It is conceivable, particularly with lower-cost devices. This article is for you if you want to use Avast’s full security but don’t want to risk performance decreases.

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