If you are annoyed that the Antimalware Service Executable high disk usage occurs, you’re not alone. Many Windows 10 users are encountering Antimalware Service Executable high memory problems. More importantly, you can fix this problem by yourself with simple solutions here. 

Antimalware Service Executable High CPU/Disk/Memory Usage

Windows 10 comes with a built-in antivirus feature, which is Windows Defender. The Antimalware Service Executable process is Windows Defender’s background process. This program is also known as MsMpEng.exe and is part of the Windows operating system. You can find this on the Details tab in your Task Manager.

antimalware service executable high disk usage

Antimalware Service Executable is responsible for checking files for malware whenever you access them, performing background system scans to check for dangerous software, installing antivirus definition updates, and doing anything else a security application like Windows Defender needs to do. Its scanning relies heavily on your computer’s CPU, that’s why you find Antimalware Service Executable high CPU, huge disk, memory, RAM, and even network bandwidth, draining computer resources, especially after getting a Windows 10 update.

How to Fix Antimalware Service Executable High CPU/Disk Usage

If the Antimalware Sevice Executable process takes up high CPU on your Windows 10, don’t worry. We have easy solutions for you to deal with it. Now, read this article in-depth and try the easy methods to fix the problem.

Fix 1. Change Windows Defender’s Scheduling Options

Change Windows Defender’s schedule is an effective way because the error is mainly caused by the real-time protection feature. Follow the details below and fix the Antimalware Service Executable high disk usage issue.

Step 1. Press Windows key + R at the same time to invoke the Run box. Type taskschd.msc and press Enter.

Step 2. Double-click on “Task Scheduler Library” > “Microsoft” > “Windows”.

Step 3. Find and expand “Windows Defender”. Then double-click “Windows Defender Scheduled Scan”.

antimalware service executable high cpu

Step 4. Uncheck “Run with highest privileges” on the property window. 

antimalware service executable high disk

Step 5. Uncheck all the items in the “Conditions” section. Then click “OK”.

antimalware service executable

With the steps above, your error should be fixed now. If, unfortunately, it doesn’t help you, make sure to try the second solution below.

Fix 2. Add Antimalware Service Executable to Windows Defender’s Exclusion List

Step 1. Press the Windows logo key + I at the same time to open the Settings window. Click “Update & security”.

click update and security

Step 2. Click “Windows Defender”. Then click “Add an exclusion” in Exclusions.

add an exclusion to windows defender to fix the high disk usage

Step 3. Click “Exclude a .exe, .com or .scr process”.

select the option according to the picture

Step 4. Type MsMpEng.exe. Then click “OK”.

type msmpeng.exe to add antimalware service executable to windows defender

Fix 3. Disable Windows Defender

When your Windows defender got corrupted by being overworked due to continuous file scanning, Antimalware Service Executable high CPU issue may be settled by disabling Windows defender.

Step 1. Press Windows Key + R to open the Run Dialog Box.

Step 2. In the Run Dialog Box, type regedit and click “OK” to open the Registry Editor.

Step 3. In the navigation pane on the left, double-click the folders to navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender.

Step 4. If you find a registry entry named DisableAntiSpyware, double-click it and set its value data to 1.

disable windows defender to fix antimalware service executable high disk usage

Note: If you do not see a registry entry named DisableAntiSpyware, right-click in the main Registry Editor pane and select “New” > “DWORD (32 bit) Value”. Name this new registry entry DisableAntiSpyware. Double click it and set its value data to 1.

Fix 4. Update Device Drivers 

Is your Windows 10 still running slow after trying the above? You can also try to update all your available device drivers. The latest drivers can keep your computer running stable and quickly.

You can try updating with Windows update, OR you can try using a great little program called Driver Booster by IObit. This software will connect to a large database of drivers and offer you them to you. Its a super easy to use program and will take the headache out of the process for you.

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