
If this fixes the problem, you can try turning it on again and the CPU usage should remain unchanged. Note: If this does not work for you, you can repeat the same process for the component named Behavior Shield. Check to see if the CPU usage has gone back to normal. Restart your PC if Avast prompts you with that option in order to confirm the changes.Click the downward-facing arrow next to the component that you want to remove (Avast Cleanup in this particular example), click Uninstall Component, and then click OK to confirm the uninstallation of the component.Navigate to Settings and click the Components tab which should be the second one.Open the Avast user interface by clicking its icon at the system tray or by locating it in your Start menu entry.

Anything that does its job in real-time can be heavy on the processor so it’s sometimes the best to simply uninstall this component. It seems that the component most responsible for this problem is Avast Cleanup which acts in real-time in order to free some resources allocated by other background apps. How to Stop Avast Service from High CPU Usage? 1.
