![]() ![]() Press Win + R to open Run dialogue, type cmd, and press Ctrl + Shift + Enter to open command prompt terminal with administrative privileges. You can modify the scan frequency from the command prompt. If you see a spike in CPU usage caused by Avast service, it may be because of a background check run. Like it was mentioned earlier, Avast runs background scans to prevent your device from getting infected. If this does not fix your issue, you can try changing the scan frequency to reduce the CPU load. This time the CPU usage should remain low. If this fixes the issue, you can try turning it on. ![]() Uninstall the Avast behavior shield process and check if the CPU usage has gone down. Tip: Avast behavior shield is also the culprit sometimes. Now go to task manager to confirm that the CPU usage has gone down. Select the shields you think you don’t need, and uninstall them from the option in the right arrow drop-down menu. Under the Core Shields subsection, you will see a list of real-time shields.ĥ.Open the Avast GUI from the system tray notification icon.You can simply uninstall any unwanted real-time components to solve this issue. Any real-time application service will be heavy on the processor, and you will see a spike in CPU usage over a prolonged time. # FIX 1 (Reinstall Avast Cleanup)Īvast antivirus provides a real-time threat protection service called Avast Cleanup, that acts in real-time in order to free up some resources allocated by other background apps. Here I will show you how to solve the Avast service high CPU usage problems using these X methods. Avast can use more than provisioned CPU if there exist an incorrectly configured system settings, or if there are some irregular entries in Windows Registry. When you check the task manager in case of a CPU slowdown, you may notice the reason to be avastsvc.exe hogging up CPU resources and/or ntoskrnl.exe consuming high RAM resources. ![]() These processes are extremely helpful but use a lot of resources at the same time. Avast service provides many different operations like a full virus scan, clean up and background scanning. What Causes Avast Service High CPU Usage?Īntiviruses are resource-heavy applications.
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