No doubt, Windows Defender is an extremely beneficial tool that comes free with your OS. The process of Antimalware Service Executable is among the services in Microsoft Defender that run in your system’s background.

This program scans to check malware and spyware detecting everything that is harmful. It also scans the background of the system to prevent viruses or malware threats. Also called MsMpEng.exe, you can find this program in the “task Manager’s Detailed Tab.

Even though it does everything to protect your system but it’s known for consuming a lot of CPU power and reducing the computer’s speed. Users find this program eating up tons of CPU usage which makes their systems perform poorly. 

In just some easy steps, you can stop Antimalware Service Executable from draining your system’s power and improve its performance.

Why is Antimalware Service Executable Using So Much CPU Power?

If the process is using a huge CPU power or resources, it’s likely that it is detecting your system for viruses. Microsoft Defender, just like any other antivirus software, scans your device’s files in the background on a routine basis.

Antimalware Service Executable

It also checks files when you access them and installs updated regularly with details about new virus threats. This CPU consumption could possibly mean that Microsoft Defender is downloading an update or you have accessed a large file making the process take extra time to examine.

Normally Microsoft Defender runs background scans when your system is off or not being used. But sometimes, Even if you’re not using your computer, it may still utilize CPU resources to execute updates or detect files when you access them. But it should not run the background scans when you are using the system.

This is common for any antivirus tool, as they all require certain system resources to examine your computer and keep it safe. Now you know why is the power usage very high during the process.

Is it Necessary to Disable the Process?

It’s fine to keep the antimalware service executable process enabled as long as it’s not running hard continuously.

However, if you have started getting issues with its constant resource consumption, it’s quite acceptable to turn off the process, and also the Microsoft Defender.

Before doing so, install another antivirus software, or else you will expose your system to danger. Having additional security is never wrong after all.

So, we will never recommend turning off the Microsoft Defender antivirus program unless you already have another antivirus installed.

Fixing Antimalware Service Executable Problem

After learning what is antimalware service executable and why it consumes a lot of power, let’s fix it. 

Disabling Windows Defender is the best way to fix the Antimalware Service Executable problem.

Regardless of which method you use, ensure you install reputable and powerful antivirus software to protect your system against malicious viruses.

If you don’t, then your files’ safety will be compromised, and your device will become extremely vulnerable to cyber-crimes.

So, let’s look at the highly recommended methods through which users can disable Windows Defender and resolve the antimalware service executable problem.

Solution 1: Using Registry Editor Disable Windows Defender

To deactivate Antimalware Service from running, cease Windows Defender on your PC. Even if you turn off Windows Defender, some processes will continue to operate in the background.

Disabling Windows Defender Under Registry

Here, disabling Windows Defender through the Registry Editor is much more helpful. The steps for disabling  Windows Defender with the help of Registry Editor are:

  • Press “Windows+S” for the search box.
  • Now write “Run” there.
  • Open “Run”.
  • Then in that particular box, write “Regedit”.
  • Tap on “OK” in order to open the Registry Editor.

Solution 2: Disable Real-Time Protection

The real-time functionality continuously scans your system regardless of what are doing. Therefore, the problem of Antimalware Service Executable High CPU disc usage is critical.

Disable Real-Time Protection

It runs quickly and consumes a lot of CPU space, resulting in msmpeng.exe high CPU load and memory usage. To tackle this, the most immediate solution is to disable real-time protection.

Afterward, the Windows Defender will stop working, keeping your computer exposed.  So, use this method as a temporary technique only. The steps are:

  • Firstly, click “Start”.
  • Then go to “Settings”.
  • Now click “Update & Security”.
  • Hover to “Windows Security”.
  • From there, navigate to “Virus Protection”.
  • Now click “Manage Settings.”
  • After that, it’s time to disable “Real-time protection”.

Solution 3: In Windows Defender, Change the Scheduling Options

Since the function of real-time protection is mainly accountable for the error, modifying the Windows Defender schedule is a perfect method. The steps are:


  • Press “Windows+R”.
  • Now type “Taskschd. MSC” there.
  • Thereafter choose “Task Scheduler Library”.
  • From there, click “Microsoft”
  • Now tap twice on “Windows”.
  • Then find “Windows Defender”. After reaching here, select the “Windows Defender Scheduled Scan” option and hit double click on it.
  • Under “Property”, untick “Run Highest Privileges.“
  • Unmark everything under “Conditions” and hit “OK” at last.

Now, this problem must have been repaired. If not, then follow the next technique.

Solution 4: Add Up Antimalware Service Executable to “Microsoft Windows Defender’s Exclusion List”

  • Press “Windows + I” to access “Settings”. 
  • Then choose “Update & security.”
  • Now hover to “Windows Defender.” 
  • Under Exclusions, tap “Add an exclusion.”
  • Moving on, hit “Exclude a .scr process/.exe,.com”
  • Thereafter access a command prompt then write MsMpEng.exe there. 
  • Lastly, hit “OK”.

Solution 5: Disabling Windows Defender Under Registry

When the Windows defender gets corrupt pr damaged because of continuous scanning, you can repair the Antimalware Service Executable High CPU issue by disabling the Windows defender. The steps are:

  • Access “Run” Dialog Box.
  • Input “Regedit” there and hit “OK” for launching the Registry Editor.
  • Tap twice the folders to go to the path – HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\WindowsDefender.
  • After finding a registry item named DisableAntiSpyware, tap twice on it and modify the value to 1.

Note: If you fail to view the DisableAntiSpyware in the registry, right-tap on the main window of the Registry Editor and select “New”. After that click “DWORD (32 bit) Value.” The new name of the registry is DisableAntiSpyware”. Now set the value to 1 by double-clicking it. 

Still, The PC is Running Slow?

If your computer remains slow even after trying the steps above, we strongly advise you to update all device drivers. Your computer will perform more smoothly and faster if you use the latest drivers. The two most trusted methods can be used for the process of updating device drivers – Automatically and Manually.

Manual Driver Update: Users can manually update the device drivers by navigating to the company’s website and looking for the most updated right driver for the device. Ensure to install drivers for Windows versions that are compatible with your system.

Automatic Driver Update: In case, you have less patience, or skills to update the drivers manually, then the automatic option is here.

Driver Easy detects your system automatically and locates the appropriate drivers for the computer and installs them properly.

  • Firstly install the Driver Easy after downloading it.
  • Then Run Driver Easy.
  • Now click “Scan Now”.
  • After that, Driver Easy will check your system for any faulty drivers.
  • To download the right driver automatically, tap on “Update” to the detected device driver. You can also install it manually later. (The FREE version allows you to perform this.)
  • Or, you can select “Update All” for downloading the right version of the drivers. (The Pro version is required for this, which includes full support as well as a one-month money-back guarantee.) After clicking “Update All”, you will be asked to upgrade.)
  • After completing all the steps, restart the PC.

So, that’s it! This last but most effective method will surely handle the Antimalware Service Executable Problem.

Also Read: McAfee Error 1406

Some Last Words

Yes, it’s true that Windows Defender is a highly useful tool, but it obviously drains your CPU power/resources. After you go through these steps carefully, you can control Antimalware Service Executable keeping your system run smoothly.

This concludes this guide. We hope it was informative. We would appreciate your opinions, thoughts, and tips down below.

Categories: McAfee Errors


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