In this digital world, the most common issue computer users are confronting is Malware attacks. Here is the importance of the MsMpEng.exe; it is a crucial component to the Windows Defender and is responsible for performing a real-time protection service. The MsMpEng.exe scans downloaded files for spyware/worms/virus and malware, finds something suspicious, moves the files to quarantine, and removes them to safeguard the system. Generally, the MsMpEng.exe consumes high CPU usage and leads to issues like system lagging, crashes, and 100% Disk usage. 

Today in this article, we have gathered a few solutions to get rid of the MsMpEng.exe High CPU Usage Issue and get your system back to the normal state. Due to the Antimalware Service Executable high CPU usage, you are also encountering unwanted issues; you can read this article until the end for a better result. Let’s have a look,

Fixes for the MsMpEng.exe High CPU Usage Issue:

Fix 1: Disable Windows Defender from scanning its own folder:

Sometimes MsMpEng.exe will search for antivirus or malware in its directory, and it might consume a massive amount of disk resources. Here the best possible solution is to Disable Windows Defender from scanning its own folder. You can follow the below-given steps to disable this option,

  • Firstly, type virus and treat in the desktop search bar and select the Virus & threat protection option from the search result. 
  • Then under the Virus and threat protection settings, click on the Manage settings.
  • In the newly opened window, click on the Add or remove exclusions option under the Exclusions section.
  • Further, click on Add an exclusion and select the option File.
  • Here browse to the C:\Program Files\Windows Defender and select the MsMpEng file from the list.

Once done, restart the system and check for improvement.

Fix 2: Minimize CPU usage:

Some users managed to escape from the MsMpEng.exe High CPU Usage Issue by setting the MsMpEng.exe file to use minimum resources inside the Task Manager. To limit the usage, follow these steps,

  • Firstly, right-click on the Windows icon on the desktop and select Task Manager from the list.
  • Then select the Details tab from the top horizontal menu and right-click over MsMpEng.exe from the list. msmpEng.exeThen select Set affinity from the drop-down menu.
  • And then, choose the CPU threshold value and restart the system.

Now check the MsMpEng.exe file consuming too much CPU resources or not.

Fix 3: Disable Real-time protection:

In some cases, disabling the real-time protection settings will help you to resolve the MsMpEng.exe High CPU Usage Issue. To disable the real-time protection, follow these steps, 

  • Firstly, type virus and treat in the desktop search bar and select the Virus & threat protection option from the search result. 
  • Then under the Virus and threat protection settings, click on the Manage settings.MsMpEng.exe
  • In the newly opened screen under the Real-time protectionturn OFF the toggle to disable the option.

Once done, restart the system and check the said issue gets resolved for you or not.

Fix 4: Disable Sample Sampling:

While scanning for viruses, the Windows built-in tool, Automatic Sample Sampling, send malicious files to the Windows security server. The Windows security server will further analyze those send files. Generally, the same tool runs in the background and consumes too much CPU resource; thus, you might receive the MsMpEng.exe High CPU Usage Issue. To disable the sample sampling tool, follow these steps,

  • Firstly, type virus and treat in the desktop search bar and select the Virus & threat protection option from the search result. 
  • Then under the Virus and threat protection settings, click on the Manage settings.Windows Security
  • Now turn OFF the toggle under the Automatic Sample Sampling section. 

Once you did the process, restart the system and check for improvement.

Fix 5: Disable Windows Defender:

You can simply resolve the MsMpEng.exe High CPU Usage Issue by turning off the Windows Defender on your system. To turn off Windows Defender, follow these steps,

Note: In two methods, you can turn off Windows Defender. Through Registry Editor and Group Policy editor, but keep in mind the Group Policy editor will not be available for Windows Home version users. 

Method 1: Through Registry editor:

  • Firstly, press Windows + R altogether to launch the Run Dialog box, then type regedit and then press OK.
  • Inside the Registry editor follow the below-given path,
HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindows Defender
  • Now from the right pane, select the option DisableAntiSpyware DWORD. If you fail to find this option, right-click on the window’s white space and select New- > DWORD (32-bit) Value.
  • Now rename the new DWORD as DisableAntiSpyware and then double-click over it.
  • Here in the new prompt, set the Value data as 1 and click on OK button.

Warning: Before disabling Windows Defender, install any trusty third-party antivirus tool to protect your system. 

Method 2: Through the Group Policy Editor:

  • Firstly, press Windows + R altogether to launch the Run Dialog box, then type gpedit.msc and then press OK.
  • Inside the Group Policy editor window, follow the below-given path,
  • Now from the right pane, locate and double click over Turn off Windows Defender Antivirus.
  • Click on the radio button beside the Enable option from the Turn off Windows Defender Antivirus properties window.
  • Finally, click on Apply and OK button.

Once done, restart the system and check this solution helps or not.

Anyway, this is all about the MsMpEng.exe High CPU Usage Issue and its fixes. We hope now you will be able to resolve the issue on your own. If you have any queries or doubts after reading this article, please leave a comment in the below comment box.