How to Fix Windows Defender Taking up Too Much CPU Resources

This practical guide walks through how to fix Windows defender taking up too much CPU resources, explains the main requirements, and highlights common issues that may appear along the way.

Step 1: At the main screen of the Desktop, right-click the Taskbar and select Task Manager.

Step 2: Then, you select the Details tab to see the applications that are active on the Windows computer.

Step 3: You proceed to scroll down to find the card 'MsMpEng.exe' and right click select Set priority => Low.

Step 4: Next, right-click to select Set affinity to configure CPU usage for the application.

Step 5: To prevent Windows Defender from using 100% of the CPU, we only set the application 1 CPU only.

You proceed to unmark all CPU items and select only CPU 0 (1), then click OK (2) to complete.

After the setup is complete, you restart the computer to check, Next Windows Defender will not be able to use too many CPU resources on the computer.

In this article, TipsMake has instructed you how to handle the error Windows Defender uses too much CPU resources on the computer. Have a nice day!