Avast Service High CPU Usage [Solution for Windows 10/11]

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  1. Download and install the software.
  2. It will scan your computer for problems.
  3. The tool will then fix the issues that were found.

#1. Clean up temporary files.

#2. Disable unnecessary startup programs.

#3. Update software.

#4. Change settings.

#5. Remove unwanted extensions.

#6. Use a different browser.

What makes Avast Service use a lot of CPU?

Avast uses more resources than it initially reports. This is because there are several different processes running inside the antivirus software. These include the main process, the background updater, the system updater, the web browser helper object, and the anti-malware agent. All of these processes use up memory and CPU cycles.

The problem lies in how Avast handles the information it receives about itself. When you start the program, it asks whether you want to enable automatic updating. If you say yes, it starts downloading updates and installing them automatically. However, it does not tell you what it is doing behind the scenes. You cannot see the progress of the update installation, nor do you know how much space it takes up on disk.

There could be some problems in Windows registry. In fact, there are many issues related to Avast. Some of them are listed here:

1. Avast Free Antivirus Plus 2016 Crashes On Startup

2. Avast Free Antispyware 2017 Crashing After Installing Updates

3. Avast Free Antimalware 2013 Crashing After Installation

4. Avast Free Antiphishing 2012 Crashing After Update Installation

Updated: July 2024

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Solution 1. Set the Scan Frequency to its highest possible value.

The high CPU issue caused by Avast Antivirus 2018 was resolved by changing the scan frequency to 999, according to a report published by Softpedia. This method is recommended because it does not cause any problems to the system performance. However, users are advised to keep in mind that disabling the background scanning could lead to security issues.

However, Avast Antiviruses 2018 still faces some major issues, including the high CPU usage. In fact, Avast Antiviral 2018 uses too much resources on Windows 10 PCs. As a result, PC owners often experience slowdowns and crashes while running the software.

In addition, Avast Antivialer 2018 sometimes causes PC freezes and hangs. These are especially common during scans and virus definitions updates.

Users should note that turning off the background scanning might expose them to potential security threats. For example, hackers could use the computer without being detected. Therefore, users should always perform regular checks to ensure that their systems remain safe.

Solution 2. Repair the Avast Program

Avast Antivirus Pro 2020 is one of the most popular antivirus programs used today. However, it has been reported that some of its features are causing problems. Users report that the program does not work properly, and even causes system slowdowns. In addition, there are reports that it deletes important files without asking permission. If you want to restore Avast Antivirus Pro to its original state, follow the steps below:

1. Open Control Panel.

2. Select Programs and Features.

3. On the left side, under Installed Updates, locate Avast Antivirus. Right-click it, and choose Remove.

4. After uninstalling the program, restart your PC.

5. Download and install Avast Antivirus again.

6. When prompted, enter your product key.

7. You can now use the program normally.

Solution 3. Take away Avast’s Cleanup Tool

Avast CleanUp Tool causes Avast service high CPU Usage. If you are facing this issue while using Avast antivirus software, it might be because of the Avast Cleanup tool. This tool scans files on your computer and removes unused programs, old browser history, temporary files and cookies. But it does not delete anything important like documents, pictures, videos etc. So if you want to use Avast antivirus without having to worry about cleaning up unnecessary data, uninstall the Avast Cleanup Tool. To do this follow the steps given below.

Step 1. Open Avast antivirus program.

Step 2. Click on Settings icon located at the bottom left corner of the screen.

Step 3. Go to Advanced tab.

Step 4. Select Manage Tools section.

Step 5. Uncheck the box next to Avast Cleanup Tool and press OK button.

Step 6. Restart the system and check whether the issue persists.

RECOMMENATION: Click here for help with Windows errors.

Frequently Asked Questions

Does a lot of disk use slow down the computer?

If you find yourself having problems with your computer because of high disk space used up, it might be due to the fact that your hard disks are running out of capacity. However, there could be another reason for this – namely, that your computer is experiencing issues with the way it uses disk space.

In such cases, you should check whether your hard disk drives are healthy. You can do this by checking the number of files stored on your computer. In addition, you can also use the Disk Cleanup utility to free up space by deleting old temporary files and browsing history.

What does it mean when a disk is full?

High disk usage usually happens due to the following reasons:

1. You have installed multiple antivirus programs simultaneously.

2. Your PC is infected with malware.

3. There are many files being opened and closed frequently.

4. A large number of temporary files are present in your system.

5. A large number of applications are running in the background.

6. You have turned off Windows Defender Smart Scan feature.