Since these tools are integrated into the OS, they do not hog resources. However, third-party antivirus tools like Avast are resource-demanding as they perform several real-time operations like running background checks and cleaning threats. While these operations are quite useful, Avast service high CPU usage becomes annoying if the service ends up consuming almost all of the CPU allocation. Avast using too much CPU can prevent you from performing other tasks, especially the CPU-dependent ones. There are several ways to solve this issue, so let’s take a look at some ways to troubleshoot this issue.
How to fix Avast service high CPU usage?
Before moving on to the solutions, make sure that Windows, the Avast client software, and virus definitions are updated to their latest version. Many times, version mismatch can lead to additional operations running and hogging resources. If you notice Avast using too much CPU even after updating everything to the latest version, move on to the following solutions.
Fix 1: Remove Avast real time components
Any task running real time operations can be heavy on resources. In this case, Avast Cleanup and Behavior Shield are reportedly the components most responsible for Avast taking up CPU and other resources. The best course of action will be to uninstall this component of the antivirus software. Follow these steps for the same:
Now, check the CPU usage as it should be down to its normal values. If this resolves your error, you can try turning them back on and check if the CPU usage remains low.
Fix 2: Change the scan frequency
If your computer CPU cannot handle the real-time tasks, you can try reducing the scan frequency and limiting background checks. While this may lead to some security issues, it will definitely prevent Avast service high CPU usage. You can reduce the scan frequency from the command centre by adjusting a value in Avast’s configuration file. Here are the steps for the same: Note that you will need to run the scans manually every once in a while to prevent security threats. C:\ProgramData\AVAST Software\Avast> avast.ini
Fix 3: Turn off Avast screensaver scanning
In some cases, you might also see Avast using too much CPU if screensaver scans are running even though the screensaver has been turned off. The tricky part of this error is that it does not show up on the Avast UI outright. Here is how you can turn screensaver scanning off:
Fix 4: Remove unnecessary add-ons
Avast is bundled with several features installed during installation that help increase its functionality. However, for most users, these shields do not perform any additional function and instead end up consuming computer resources for nothing. To remove such components, you can modify the installation from Control Panel. Follow these steps:
Fix 5: Repair Avast from Control panel
You can also try repairing the Avast client software from the control panel to repair any broken installation files that might be using up additional resources. Follow these steps for the same. If this did not solve the issue then move to the next solution.
Fix 6: Disable Avast Notifications
Sometimes Avast tries to send notifications but it never reaches. All those notifications can get glitched and may cause an error leading to high CPU usage. Here is how you can fix it.
Go to the hamburger-shaped menu icon.
Click Settings from the menu.
Head to Notifications from the General section.
Tick the following boxes and move to the next step.
Use silent mode and turn off all pop-ups, alerts and messages Show detection dialogs while the silent mode is on
Untick the box Share app-usage data with Avast so we may offer you upgrades or our other products in the Personal Privacy section.
Close the settings menu and now your high CPU usage should be fixed. Check in the Task Manager and see if the problem persists. Move to the next step if it is not solved.
Fix 7: Update Avast to the Latest Version
An older version of Avast could start causing problems. It may not function properly and can consume more CPU or RAM for no reason. Many users have reported that updating Avast has solved the high CPU usage problem for them. Here is how you can update Avast.
Open the home screen of Avast antivirus and go to settings from the hamburger menu
Go to the Update section and then click on both the Check for Updates buttons.
Avast will contact its servers and check updates. Pending files will be downloaded and installed or it will say Virus definitions are up to date and Your application is up to date.
Restart your computer after the update process and check if it has solved the CPU usage problem.
Fix 8: Re-install Avast
When none of the solutions have worked for you then it is time to install Avast again. First uninstall it from Control Panel > Uninstall a program > Avast. This will remove the corrupt files and prevent your system from overheating due to high CPU usage. Install Avast by downloading the latest installer from the official website. This will help you get a fresh start with the anti-virus.
Can I end task Avast service?
Ending the task Avast service will stop avast antivirus to work properly.
Why is Avast slowing down my computer?
Avast runs lots of processes, scans, and updates in the backgrounds and utilizes a lot of memory thus slowing down your Computer. You can even use alternative antivirus that uses less memory for better performance on your PC.
How do I stop Avast from running in the background?
You can open task manager and select avast-related processes and click end task to stop them to run in the background. Conclusion These were the ways to fix Avast Service High CPU usage issue. We will keep adding new solutions to fix this problem.
