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The avast program that constantly uses disks is an issue that can negatively impact your PC performance. It can slow down your applications and can even cause crashes if the issue is not addressed. This issue can be addressed in a variety of ways, such as performing a virus scan as well as resetting virtual memory, or performing a fresh start. Additionally, you can also uninstall programs that you do not require and delete temporary files that are taking up CPU and RAM. You can do this manually or with a program such as AVG TuneUp that will do it for you.

The change in the scan frequency could lower the disk usage of avast. This method will disable background monitoring and checking, but it will decrease avast’s high CPU utilization.

If you’re still experiencing an excessive use of your CPU and disk it is possible to update the antivirus software. You can open the Avast interface by clicking the icon in your system tray or by looking for it under the Start menu entry. Click Menu and select Settings from the drop-down menu.

You can find the list of scans which are running on your PC by right-clicking a file located anywhere on the drive and selecting Scan with Avast in the context menu. The Stop button allows you to turn off a particular scan if it’s using excessive memory. Then, you can check whether the CPU usage and disk usage has returned to normal.