Top 4 ways to Fix Antimalware Service Executable High CPU Usage

Windows Defender comes with many processes which help our PC to maintain good health and high speed. One of the most important processes is Antimalware Service Executable in Windows 10. Sometimes we use windows defender and get to know about High CPU usage. The first thing that comes to everyone’s mind what are the ways to resolve this type of issue.

We are providing effective top 4 ways to Fix Antimalware Service Executable High CPU usage. From these solutions, you can troubleshoot your PC by yourself without going anywhere. These are a very simple solution which can be done by anyone. Even if you are a beginner and resolving this issue for the first time, don’t worry because this process is very easy to understand and highly effective.

Four ways to fix Antimalware Service Executable High CPU Usage

1. Change the Scheduling option of Windows Defender – Here we are explaining one of the top 4 ways to Fix Antimalware Service Executable High CPU Usage. Many of you are aware of windows defender and how it protects our computer. When it runs a full scan on our PC, Antimalware Service Executable happens. It causes high CPU usage which can put a bad effect on your PC.

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For avoiding this issue, we can schedule all scans so that they can take place at your desired timing.

Here are the steps to change the Scheduling option of Windows Defender-

  • Click on Start Menu and type task scheduler in the search bar.

  • Launch the program.

  • Find the Navigation pane on the left and double click on the Task Scheduler Library.

  • Expand the folder and find the following destination – Library/Microsoft/Windows/Windows Defender.

  • Double click on Windows Defender Scheduled Scan.

  • Find the condition tab and click on it. Uncheck all the options for clearing previously scheduled scans.

  • After clearing previous ones, double click on Windows Defender Scheduled Scan, select the Triggers tab and click on new.

  • Now you can create your new scheduled scan according to desired requirements. You can create weekly scans for maintaining the performance of your PC.

2. Put Antimalware Service Executable on the list of Windows Defender’s Exclusion – The second way from the 4 ways to Fix Antimalware Service Executable High CPU Usage is to put Antimalware Service Executable to Windows Defender’s exclusion list.


When Windows Defender runs a scan, it scans each and everything present on your PC including itself. This can result in system lag which can affect your system’s performance. For solving this issue, here are some steps-

  • Open Windows Task Manager by pressing Ctrl+Shift+Esc.

  • Search for Antimalware Service Executable in the processes option. Right-click on it and open the file location.

  • After file location, you will be able to see the full path of the Antimalware service executable in the Address bar. Copy that full path.

  • Click on Start Menu and type Windows Defender in the search bar. Open Windows Defender by clicking on the first result.

  • Click on Virus & Threat protection settings.

  • For the Exclusion option, Scroll down and click Add or Remove Exclusions.

  • Select Folder and paste the copied path to Antimalware Service Executable in the address bar.

  • Click Open.

By these steps, the folder will be excluded from the scan and your issue will be resolved.

3. Disable Windows Defender from Your PC – Here is the next one of the top 4 ways to Fix Antimalware Service Executable High CPU Usage. If you are not able to resolve your issue by the first two steps then you can use this one to improve the performance of your computer. In this solution, you have to disable windows defender from your PC. But before doing this step, you should install Antimalware on your computer for protection from cyber attacks.


Here are the steps to disable Windows Defender from your PC –

  • Press the Windows + R key together and open the Run dialogue box.

  • Type Regedit to open registry editor and click ok.

  • Navigate on the left pane and double click the folder for destination – HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender.

  • Find a registry named DisableAntiSpyware and double click on it.

  • After opening it, set its value data to 1.

  • In case, you are not able to see this type of registry, right-click on the main registry editor pane. Select New and DWORD(32 bit).

  • After following it, Name this registry entry DisableAntiSpyware and set its value data to 1.

4. Check Malware Infections – The next solution in our top 4 ways to Fix Antimalware Service Executable High CPU Usage is to check for malware infections. Malware infections can be the major cause of the bad performance of your PC. It can cause your system to be slow and corrupt. For solving this type of issue, you can install any antimalware solution which can run a full system scan to find any type of malware infection on your PC.

There are many types of Antimalware solution available on the Internet with a free 30 days trial. You can use their trial product for finding the real cause of High CPU usage. 




All 4 ways are accurate for improving the performance of your system by troubleshooting all issues. As for our knowledge, Windows Defender is a very effective tool for protecting our system but sometimes it can drain the CPU and cause lag or poor performance. By using these solutions, you can save your system from High CPU usage.


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