How To Fix: Avastsvc.exe High CPU Usage [6 Ways]


Avast antivirus is software that consumes a lot of resources. When you launch Avast, several services start-up in the background like background scanning, thorough virus scans, virus eradication, cleaning, and Software Analyser are the most popular services. Avastsvc.exe high cpu usage can become inconvenient. You may even want to delete Avast.


There are various solutions to this problem, so let’s look at some of them.

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Make Sure Avast Is Up To Date

Most of the time, the Avast antivirus installation’s excessive disc utilization problem is caused by an out-of-date antivirus version.

As a result, you must update your antivirus software and virus definitions to the most recent version.

See also: Best Antivirus for Mac: 5 Best Apps in 2019

Follow these procedures to update Avast antivirus

1. To open Avast, double-click on its icon in the system tray.

2. Click on Menu, then Settings from the drop-down list.

3. Click on the General tab, followed by the Update tab.

4. There are two update buttons for updating the virus definitions database and upgrading the application itself.

check for updates
check for updates

5. Both the database and the software need to be updated. Be patient while Avast checks for updates online, then follow the on-screen instructions.

6. Once completed, check if the avast service’s excessive CPU utilization has returned to normal.

Fix: The CPU Has Been Disabled By The Guest Operating System Power Off Or Reset The Virtual Machine

Repair Avast’s High Disk Usage Using CMD

Frequent background scanning might place a strain on RAM and the CPU. As a result, if you increase the scan frequency to the maximum, the CPU consumption will drop. It will prevent background inspections and monitoring, but it will significantly reduce avast’s excessive CPU usage.

  • Using Windows + R, type cmd and press enter. As an administrator, open Command Prompt.
  • Check to see if the Avast software analyzer’s excessive memory use issue has been repaired.
  • If the Avast utilizing 100% CPU or disc issue persists, try the following remedy.

Uninstall Avast Cleanup Tool

The most significant avastsvc.exe high cpu usage component is Avast’s cleaning tool. It primarily serves as a real-time scanner, allowing users to clear up space used up by background programs.

As a result, uninstalling Avast cleaning is the best option for you.

uninstall avast clean up
uninstall avast clean up

This cleaning component may be causing your avast service to use too much CPU or memory. First, open Avast

• Click the Components tab under Settings.

• Now, next to the component tab, click the downward-facing arrow. Here you will find alternatives to delete Avast Cleanup, select uninstall a component, and click OK to confirm the component’s removal.

• Whether Avast prompts you to restart your computer, do so, and then check to see if the avast service high CPU has returned to normal. 

If you have any reservations regarding the memory usage of the Avast behavior shield, you can delete it using the same method. If this fixes the problem with the avast service consuming a lot of CPU, you can restart it, but the CPU use should remain the same.

Related: – Runtime Broker: How To Fix It From Causing High CPU Usage Error?

Verify That Avast Screensaver Scanning Is Turned Off, Even If It Shouldn’t Be

When this screensaver scans in the background, it consumes a lot of CPU and disc space.

You can resolve this issue, even if it isn’t visible in the Avast interface. Take the following steps:

  • Right-click on a file on your computer and select Avast from the context menu to scan the file.
  • You should see a list of scans that are presently underway in the scan result box.
  • To stop the Avast Screensaver scan, go to the scan’s location and click the Stop button.
  • Check if the avast service’s excessive CPU consumption issue has been repaired now.
  • Check to see if the avast service’s excessive CPU consumption issue has been repaired.

From The Control Panel Repair Avast

If none of the preceding solutions work and the Avast software analyzer’s excessive CPU utilization remains, contact Avast Support. Then, using the control panel, fix Avast.

Many forum members believe that this technique assisted them in resolving the avast service’s excessive CPU consumption. You’ll need to update your scan settings after you repair Avast.

Before attempting this approach, make sure to log in as an administrator b

  • To access the control panel, use Windows + R, type control panel, then press enter. If you’re using Windows 10, you can also open the settings menu by clicking on the gear symbol.
  • When the Control Panel appears, go to the top right corner and select View as Category, then click Uninstall a Program in the Programs area.
  • Go to Apps in the Settings app to see a list of all the apps installed on your computer.
  • In Avast’s Control Panel or Settings, select Uninstall/Repair.
  • In the uninstall wizard, you have two choices: Repair or Remove. Choose Repair and then click Next to rectify the program’s installation.
    repair avast
    repair avast
  • Now is the time to double-check everything. After that, Avast will restart with the default settings from before the incident.
  • Click Finish and restart your computer after the uninstallation is complete.
  • Examine whether the avast service is using too much of your computer’s resources.

This can help repair the avastsvc.exe high cpu usage problem. 

Uninstall Unnecessary Avast Add-ons

You may install Avast Add-ons, which have their own set of advantages and disadvantages, but they frequently result in excessive CPU utilization.

If you don’t need these functions, remove the Add-ons from your Avast installation.

Follow these steps:

1. To Run the dialogue box, press Windows + R then type Control Panel and press Enter.

2. From the drop-down menu, choose Programs > Programs & Features. It will provide a list of all the software that has been installed on your computer.

3. In here, locate Avast Antivirus and Right-Click on the and from the options select Uninstall.

4. Wait for Windows to complete the request, then select the Modify option in the following box.

5. Except for File Shield, Mail Shield, Web Shield, and Behavior Shield, uncheck all the unneeded choices.

uninstall unecesary add ons
uninstall unecesary add ons

6. Wait for it to install after clicking the Change button.

See also: How to Fix Avast Blocking League of Legends (LOL) Launcher


We hope these methods fix avastsvc.exe high CPU usage. Have you addressed the Avast service high CPU Windows 10 issue after trying the following solutions? Would you mind letting us know if you have any better ideas?