How to Fix Antimalware Service Executable High CPU Usage

Working with any version of the Windows operating system, we occasionally encounter different problems. Some arise due to the installation of some software from third-party developers, others from games and the third from embedded software.

The software that comes bundled with the operation system generally doesn’t cause much problem with high cpu usage and they shouldn’t as well. But sometimes some process or service that comes with windows operation system starts consuming high cpu resources. The most common process among these is msmpeng.exe which is shown as Antimalware Service Executable in the task manager.

So today we will tell you about what is Antimalware service executable and how you can fix excessive CPU load. So stay With us.

What is Antimalware Service Executable?

Antimalware service executable is the core process of windows defender. Windows defender is the default antivirus that comes with windows os. The main function of Antimalware service executable is to protect your pc from spywares & malwares. This process runs in realtime and keeps scanning all the files in your pc for spyware or malware.

You can find this process running in windows task manager and if it is using excessive cpu load then you may have also tried to delete it or ending it. But this won’t end there this process is designed to restart itself even if you manage to close it via task manager.

So if you really want to get rid of antimalware service executable then follow the steps below.

How to fix Antimalware Service Executable high CPU usage

There are two possible way for you to stop the high cpu usage by Antimalware Service Executable. First is by changing the schedule at which Antimalware Service Executable should be scanning your files. Set the time to somewhat when you are not supposed to be using your pc and it will be turned on.

The other way is to disable windows defender which will disable Antimalware Service Executable with it. Turning windows defender is not recommended and suggested until you plan to install any other antivirus solution in your pc.

#1. Change Windows Defender Scheduled Scan

  1. Press Windows Key + R to open the run dialogue box.
  2. Now type in taskschd.msc and press enter to open Task Scheduler.
  3. In Task Scheduler, double-click on Microsoft > Windows.
  4. Now on the left navigation pane scroll down and find Windows Defender. Click on it to open its options in the right pane.
  5. Now double click on Windows Defender Scheduled Scan on the right pane.
  6. Now you will be presented with a new window, In General tab, you need to uncheck “Run with highest privileges” option.
  7. Now move to the conditions tab and uncheck all the options.
  8. Now move to the triggers tab and click on new.
  9. Now, Create a new scan schedule as per your needs. We recommend you to do it once a week when you are very less likely to use your PC a lot.
  10. Just restart your pc now and you will find that antimalware service executable will be using a lot less cpu now.

#2. Disable Windows Defender Using the Local Group Policy Editor

  1. Press Windows Key + R to open the run dialogue box.
  2. Now type in gpedit.msc and press enter to open Local Group Policy Editor.
  3. Now, once you are in Local Group Policy Editor, Browse through Computer Configuration > Administrative Templates > Windows Components > Windows Defender..
  4. Now look for the setting called Turn Off Windows Defender.
  5. Now in the new windows select enabled to disable windows defender.
  6. Windows Defender should be disabled instantly. If if doesn’t, restart the computer and check to see if it’s disabled.

#Bonus 3. Add MsMpEng.exe to Windows Defender Exclusion List

If the above methods don’t work then you can also try adding msmpeng.exe to the exclusion list as this will also reduce the high cpu usage by Antimalware Service Executable.

  1. Open Search Bar and search for Windows Defender.
  2. Now, Click on Virus & threat protection.
  3. Now, click on Virus & threat protection settings.
  4. Now Scroll down and look for settings named Exclusions and click on Add or remove exclusions.
  5. Now Click on Add An Exclusion and select process option.
  6. Now just type Msmpeng.exe in the field and click on Add button.
  7. That’s it, now you have added the Antimalware Service Executable to the exclusion list.

So these were the three methods that you can use to disable Antimalware Service Executable or fix it. If you are facing any problem with the steps above then comment below and we will be glad to help you.

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