Antimalware Service Executable (High CPU-100% Disk Usage)

Antimalware service executable is one of the common problems many Windows 10 users are having after an update. Many users have complained that they have upgraded from Windows 8 or Windows 10 to the latest build version of Windows 10 and then they started to have Antimalware service executable high CPU issue. Unfortunately, Windows latest edition was a rushed project because they had to compensate Windows 8.1 Pro users a free upgrade.

One of the major issues that plenty of Windows 10 users are having is the Antimalware service executable. With that being said, there have been an increasing number of users’ complaints when they upgraded from Windows 8 or Windows 10 to the latest version of Windows 10, then they have this Antimalware Service executable high CPU issue.

It would be right to say that the Windows latest edition was a hasty project as they had to compensate the users of Windows 8.1 Pro for free.


What is Antimalware Service Executable?

antimalware service executable

There may be doubts in many of you having this question of what exactly is Antimalware service executable? Why is it causing such an issue and the reason behind Microsoft could not fix it is that Antimalware service executable is one of the features in Windows defender that protects you from spam, malware, Adware, or against the harmful viruses like Trojans, etc. Indeed, it is an in-built tool that scans your Windows 10 PC for malware and to remove any threats on it.

The MsMpEng.exe or Antimalware service executable tool cannot be removed from your PC. For that, Microsoft has provided a fix for the high CPU and memory usage.

I know that many of you have this question that what is Antimalware service executable high memory usage? Why is it causing such a problem and why won’t Microsoft won’t fix it? Well, Antimalware service executable is a feature of Windows Defender that helps you to fight against the Virus, Spamming, Malware, Adware, Trojans, etc. It is a built-in tool that scans for malware and eliminates any threats when finding on your Windows 10 PC.

You cannot remove MsMpEng.exe or Antimalware service executable tool from your computer. But, Microsoft has provided a fix, and we will also suggest you few more things that will fix the high CPU and memory usage.

First, we need the possibilities because it explains the reasons behind why your Windows 100% disk usage is lagging and slowing.

  • Microsoft added a software or antivirus program called “Defender” that protects your Windows PC from all sorts of threats. The program runs in the background without interrupting your work or even when you’re PC is idle. The main purpose of the program is to identify the Virus, Malware, Adware, harmful files, etc. Now, it comes with an option called “real-time protection”, and it consumes a lot of memory and CPU. The “real-time protection” doesn’t stop until you manually stop it from protecting you from threats. If you are running an older machine like Dual-core manufactured below 2010, then Windows Defender is real-time protection is slowing your PC down.
  • Windows Defender has another feature called “deep scanning” that constantly keep scanning your drives for threats and it doesn’t stop until you turn off your PC. In case, if your PC has standard HDD storage and not SSD storage, then your computer will slow down because it consumes a lot of memory and CPU. In simple words, deep scanning slows your PC down, so you have to turn it off.

There are many reasons behind Windows Defender behavior, but we are going to show you ways that allow you to fix the problem.

The first thing you need to know that suppose Windows Defender is to keep scanning files back to back without a break, then this is a serious problem. However, on the flip side, if you are planning to reset the PC, then it will fix the problem temporarily.

There is nothing wrong with letting “msmpeng.exe” Antimalware service executable run in the background because it protects you in real-time, and the good part is that you can fix it using Windows features.

Allow us to show you how to disable Antimalware Service Executable Windows 10.

Fix Antimalware Service Executable High CPU – Disk Usage

First, you have to identify the problem, so this will help you identify the problem and fix the issue at the same time. I have mentioned in the first reason that real-time protection slows down your PC, right? Now is the time to find out, whether real-time protection is slowing you down or not.

Step 1: First, go to settings, and then click on “Update and Security.”

antimalware service executable high cpu

Step 2: Second, turn off “real-time protection” and turn off “cloud-based protection.”

Real-time protection Windows 10

I have already turned off because I am using Avast antivirus program that takes cares of the real-time protection for me. Now, restart your PC and check if the problem is real-time or msmpeng.exe Antimalware service executable.

A Deep Scan on All Drives in Windows 10 PC

There is a virus called malware, and it is designed to cause problems for you and your computer. Number one, they are not easy to trace by MS Defender. Most of the users don’t know that MS Defender is not perfect and sometimes malware can slip from the eye of Microsoft antivirus system. Malware purpose is to make your life harder, and there is a malware called “Chromium browser” that increases RAM usage or memory usage to slow your PC down for no reason.

Go to safe mode and use another antivirus system from your Windows 10 PC.

In my case, I am using Avast Internet Security, and you can try the free version as well because it is a very good free antivirus system in the market.

Currently, I am using a premium version, but you can download the Malwarebytes free program and Avast security program to get rid of the malware and all sorts of the virus once and for all.

Let me tell you that Avast free version is not good at malware detection, but Malwarebytes detects and cleans malware. But, Malwarebytes can’t detect adware, virus, and Trojans, so we need Avast that can detect and cleans it.

Antimalware Service Executable Turn Off Windows Defender

Many people in the world have installed the latest edition of Windows 10 on their older machines. The interesting point of Windows 10 is that the minimum requirement mentioned by Microsoft does not apply to all computers in the world. Your computer hardware may not be compatible with the latest edition of Windows 10.

Note: Keep the “limited periodic scanning on” because once in a week scanning won’t hurt your computer.

I recommend you to get rid of the Windows Defender and opt for the Avast free antivirus and Malwarebytes free version because it does not slow down your PC that much and Malwarebytes works smoothly.

WD consumes a lot of RAM, and Processor speed and your computer may not handle it smoothly, so I recommend you to turn it off and opt for other options that I have mentioned.

So what’s next?

Avast Free Antivirus: The company that developed Avast is a billion-dollar company because they managed to provide a free version of every single computer user in the world. It might not come as a surprise that Avast free version is better than many premium versions, yes, it is true.

Malware detection

Malwarebytes: I have installed Malwarebytes because Avast (any version) is not good at detecting malware, I have installed Malwarebytes because it is a perfect replacement for the Avast CON.

Avast might slow down your computer a little, but it won’t impact your computer performance more than 10% -15%. I have also tested Malwarebytes but no sign of slowing down, so I think, you don’t have to worry about Malwarebytes slowing down your PC.

Antimalware service executable should fix the issue once and for all.

Process Lasso

A few months back when my computer faces high CPU and Memory usage, then I started to look for a solution, and I came across Process Lasso that I use every day.

What is Process Lasso?

If you want to solve antimalware service executable high disk usage and memory usage, then you can use the most advanced program that helps you to keep your computer cool down, so it can perform at its best. I have not seen any optimization program work this good in my life because it works like a charm.

what is Process lasso

The Process Lasso did not pay us to add it, and we are using it on our Windows for a long time, and I can tell you that it works like a charm.

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How does it work?

1: It has an algorithm that enables to monitor background running applications.

2: The Process Lasso analyzes real-time when a program is trying to utilize processor and RAM more than it should on a basic level.

3: The Process Lasso uses Microsoft Windows default feature called “Program Priority” that decides if the program is important for Windows to function or not.

There are low, medium, and high to determine Microsoft services and regular software.

4: The Process Lasso has created an algorithm, and they named it “normal” that sets every time a Browsers, Games, Softwares, and more trying to utilize the CPU more than they are allowed to do it.

5: The Process Lasso keeps “normal” mode all time to balance the CPU usage.

It keeps my Windows 10 CPU performance optimal, and it does not let any program to slow down my CPU.

  • It has an industrial look, and it looks way too advanced, but it isn’t. Install it and let the default settings do the job for you and you don’t need to edit anything.
  • You have to do nothing and let it run in the background because it will keep your CPU to the optimal stage on default settings.
  • It will improve your computer speed, and you won’t have “not responding” issues anymore.

Now, does this solve the problem of antimalware service executable Windows 10? Maybe or maybe not because there are a variety of problems when it comes to antimalware service executable high disk usage.

Download Process Lasso for free

Change Windows Defender’s Schedule

In the second reason, I have mentioned that the Windows Defender might be scanning every file on your system back-to-back without a break and it can slow your PC down.

Well, we are going to fix it because scanning is something that should happen once in a day or once a week. But, it should not start to scan every file on the computer every time you turn on your PC.

We are going to use the Microsoft OS inbuilt feature “task scheduler” that puts a lets your control the Microsoft antivirus the way you like it.

Would You Like to Check:-

Step 1: Type “task scheduler” in the search bar or Cortana bar, and click on the first result.

what is antimalware service executable

Step 2: Click on “task scheduler library” > Microsoft > Windows folder, then you have to scroll down until you find Windows Defender folder.

antimalware service executable windows 10

Step 3: Scroll down to the bottom till you find WD folder in the list and click on it to open it.

what is antimalware service executable

Step 4: Now, you have to click on “Windows Defender Scheduled Scan” and wait for a few seconds for it to open.

Task Scheduler windows 10

Step 5: Now, you have to deselect “run with highest privileges.”

msmpeng.exe antimalware service executable

Step 6: Now, click on “conditions” on the top menu and you have to deselect (2) the first four options pointed out in the snapshot and click on “OK” to complete the process.

antimalware service executable disable

You are done, and WD will only run once in a while and your computer saved from the antimalware service executable high disk usage.

Why msmpeng.exe Antimalware Service Executable occur in windows 10?

I have seen many people who are complaining about the high usage of CPU in their windows system which could be the cause of slowing down a system.

They have tried a lot to solve this issue but they wouldn’t be able to identify the problem.

And if you are one from many of them then you are on the right place because today in this article I am going to share the problem and solution both and will make your computer faster by reducing the high CPU usage of your computer resources.


Here are the two most common reason why antimalware service executable or msmpeng.exe file take maximum computer resources to perform its task…

It scans and monitor continuously your computer system and provide you with real-time protection and protect you from different kind of malicious activities or cyber-attack.

It scans your full computer system why it turned on and connect with the internet. So, to perform this larger task it needs an excessive amount of computer resources like CPU, RAM, etc.

So, these are the two cases which become the most of the time to slow down your system and the higher usage of your computer resources.

There are multiple methods available that will help to fix the issue of msmpeng.exe antimalware service executable 100 Disk Usage & msmpeng.exe file.

So, let’s start one by one…

No Problem! – Let’s see if we can get it fixed for you!

Msmpeng.exe is a Windows Defender process that is known to use huge amounts of system resources, causing program freezes, PC lock-ups, and slow performance.

So, If you are getting Msmpeng.exe messages or are getting errors associated with this EXE, then there is a 98% chance that your computer has problems with its registry.

Msmpeng.exe errors will generally identify themselves in one of several different ways. You may be getting something like…

File Msmpeng.exe not found

This program requires the file Msmpeng.exe, which was not found on this system.

Msmpeng.exe MISSING

Of course, your message may be different but the problem lies with situations that lead to the removal or corruption of the Msmpeng EXE file.

To remedy this problem, you need to follow these 3 simple steps:

Step 1 – Download and install Registry Easy Registry Scan for FREE.

NOTE: If the download link doesn’t work you may need to Download it Directly from Registry Easy Site Here.

Step 2 – Click the ‘Scan’ button.

Step 3 – then click the ‘Repair Problems’ Button and you’re done!

Change Windows Defender Scheduling

Windows Defender & msmpeng.exe scan your full system to provide real-time protection from different kind of malicious activities.

And because of a full scan, it takes higher computer resources to perform its task.

So, by scheduling the system you can reduce the number of files to scan by windows defender instead of scanning the full system.

And here is how you do it…

  1. Open the start menu and type “task scheduler” then click on the result that appear on the top.
  2. On the left side click on the Task Scheduler Library to expand it. Then look for this destination path: Library/Microsoft/Windows/Windows Defender.
  3. Once you open the destination folder then double click on windows defender scheduled scan, located in the middle area.
  4. Click on the Conditions tab, uncheck all the options and then click Ok. This will clear all your scheduled scans and windows defender will scan none of the files.
  5. So to protect the system you have to schedule some new scans. Remember to reduce the CPU usage, schedule only important files to scan.
  6. To do this click on windows defender scheduled scan then select the trigger tab and click on new scans.
  7. Now add only important scans that protect your system and reduce your system usage too.

Repeat the same process for cache maintenance, windows defender cleanup, and windows defender verification. All these you will get under Library/Microsoft/Windows/Windows Defender folder.

[FIX] antimalware service executable high disk usage windows 8 – 10

Windows is a great operating system for productivity, but sometimes things go wrong leading you to waste hours of your life just waiting. The issue might have antimalware service executable craving a very high CPU usage, Disk usage or Memory usage. So typically Windows Defender will be listed as an antimalware service for reporting purposes in Windows.

Let me introduce you with antimalware service executable high disk usage

100 disk usage

Antimalware Service Executable process runs on the background of the Windows Defender’s services and it remains continuously running in the background. It is also called “Windows MsMpEng.exe” which is part of the Operating System (OS)

The main responsibility of Antimalware Service Executable High Disk usage Windows 8 10 to check malware in the files while accessing them, installing antivirus definition updates evaluating background system scan to survey for dangerous software and various other tasks the security application like Windows Defender requires to do.

If you have ever gone to the task manager and you may ever notice that a certain component of your system is using lots of resources for the antimalware service executable high CPU usage.

So it’s important to have an antimalware service running, especially if you do not have any antivirus or antimalware applications on your computer. Because without that it will leave your computer vulnerable to many dangers of the internet.

I have been hit by the 100% disk usage bug in Windows, thankfully I’ve been able to find few solutions to resolve it which I’m going to share with you guys now in order to improve your computer’s overall performance.

In this article, I’ll show you how to keep real-time protection enabled for the Windows defender, but at the same time addressing this unreasonable amount of memory that’s being taken up.

We are going to jump right into here, so if you’re already addressed with the issue, let’s get started!!


Now if you’re noticing slow performance in your windows, the first thing to do check your disk usage. This is displayed in the task manager which you can open it directly by pressing CTRL + ALT + DEL or by right-clicking the taskbar and selecting the task manager.

Antimalware Service Executable 100% Disk Usage

Once the task manager is open look for the disk column, if it displays 100% or consistently higher than 97% and stays like this for more than a minute then you are affected. This basically means that an application or service is regularly utilizing the hard disk drive or solid-state disk.


The first thing you should do is check your anti-virus software is the software is updating or has your computer been affected by malware. Open the anti-virus software and confirm if it has been updated recently, if so then it probably it hasn’t updated now.

Follow this by running a full system scan to detect the malware note that this may take a while on to the circumstance so close to all other applications first.


Windows search has been shown to cause problems with disk use. To stop this right click start and select Command Prompt (Admin), now type net.exe stop “Windows search”. Check task manager to see the impact of this, if it works you can permanently disable it by pressing “Windows key + R” and enter “services. MSC”.

windows search property

In the services window find Windows search and double-click to open the Windows search properties box.
Find Startup type and select “Disabled” and press Stop to abort the service then click OK to save your changes.


Another identified cause of disk performance issues in Windows is superfetch. This is a tool that speeds up app launching by preloading apps based on your usage. Again open Command Prompt (Admin) and enter net.exe stop superfetch. After waiting for a few moments to check the impact of this it is worth running chkdsk.exe /f /r. Note that you will need to close your all applications before restarting Windows.


There are a few reasons to have flash running on your computer. It one of the most vulnerable aspects of modern computing and it’s also a common culprit for the 100 disk usage bug. Now open the chrome browser, then settings and find show advanced settings, here click on content settings and find flash.

chrome browser setting

In flash, just select the third option “Block sites from running Flash” and confirm with Done, now restart the browser. Keeping an eye on the disk column and the Task manager to see what impact the action has had.


Is it Skype eating up your hard disk drive?

This might produce the 100 disk usage bug in the task manager, therefore you can perform the necessary actions to resolve this issue as soon as possible. Find out by first removing the Skype from the system tray, next tap “Windows
key + R” and enter this file path “C:\Program Files (x860\Skype\Phone\)”.

skype setting

Windows Explorer will open a folder where you’ll see Skype.exe right-click the file and select “Properties”, in the security tab go to “Edit” and select “ALL APPLICATION PACKAGES”.

In the allow column checkbox next to “Write”, then click Apply and OK to finish.


Finally, Diagnostic Tracking can have a performance impact on Windows. If this is the source of your 100 disk use in the task manager, then you can stop the service and prevent it from launching. Right-click the start menu to open a Command Prompt with admin privileges and input sc config “DiagTrackstart=disabled and follow this with sc stop DiagTrack”.windows 10 notification setting

As well as this you can also open System settings and go to Notification & actions disable the option of getting tips, tricks and suggestions as you use Windows.

Is now a 100 Disk Usage bug slowing down your Windows Computer after performing all these fixes. Did these fixes work or have you found a new one, do let me know in the comment section.

Antimalware Service Executable High Cpu Usage For Windows 10

Are you here to know about antimalware service executable high CPU usage?

If yes then you have come to the right place because today in this article I am going to explain everything from scratch to advance about this service because lots of people are suffering from the problem of having a very slow speed of their computer and which cause just because of antimalware service executable high CPU.

Antimalware service executable is a service of windows operating system so it slows down windows computer only and if you are using any other operating system then you are safe.

So let’s deep down into it and know why occurs this issue in your system.

You guys might be aware that the windows operating system provides an inbuilt antivirus software called windows defender which takes care of the whole system from an attack or virus.

Antimalware service executable is a service of that windows defender software that runs in the background. It is also known as msmpeng.exe high CPU.

It starts running from the time you turn on your computer and stopped when you turn off the computer. The main reason for running this service in the background is that it continuously keep scanning your system either you are connected to the internet or not and whenever it gets any malicious activity running in the system, firstly it tries to stop it and if not able to stop then it informs you.

Malicious activities can perform on your computer in two ways externally and internally, externally attack possible only when you are connected with the internet, and internally means already you have downloaded any malicious software and being unaware run this software on your computer. An antimalware service executable protects you from both attacks.

And sometimes because continuous scanning uses the maximum resources of your computer and that’s why when you run any other software like Microsoft word or any else, it doesn’t get resources to run and your computer starts hanging.

Antimalware Service Executable Issues

Having this service on your computer is beneficial for you because it protects your computer from lots of malicious activities.

But sometimes along with giving protection to your computer, itself, it becomes the reason to not run your system properly because it starts using a maximum of your computer resource, and sometimes it goes around 90-97% of resources used as you see in the below picture.

Now let’s discuss why this problem occurs…

  1. It continuously keeps running in the background of your computer system to provide real-time protection to protect you from different kinds of malicious attacks like viruses, worms, Trojans, etc.
  2. The second is connected with the first one means when you connect with the internet a load of scanning your computer system might increase because the time you connect with the internet it has to scan the whole system along with the websites you visit on the internet.

So, these are the two main reason why the antimalware system uses much of your resources and make your computer slow down.

Now let’s discuss what solutions to this problem…

A solution to the Antimalware Service Executable issue

So, above we have discussed the problem and here in this section briefly I am going to tell you the solution one by one.

Let’s begin…

  1. Change the windows defender scheduling.
  2. Add Antimalware service to the exclusion list.
  3. Repair corrupt defender files.
  4. Turn off windows defender.

So, these are the solution you can apply to get rid of this problem in your computer system and I am sure that if not all then at least one is going to work.


You can turn off the msmpeng.exe antimalware service executable, but make sure you have installed Avast free antivirus and Malwarebytes to keep your computer safe from all threats. You can also try the Process Lasso because it helps your computer to run at an optimal level.

Antimalware service executable is the service of a windows defender software which inbuilt installed in your Windows device.

It scans your whole system continues to provide you real-time protection and sometimes along with benefitting, itself it became the reason to slow down the system which I have discussed above with the proper solution.

The primary reason for writing this post is to make you aware of the 100 Disk Usage bug and I’ve covered all the necessary areas where the bug can arise from and also mentioned the steps to resolve this bug in simple steps.

These methods help me bring out from this problem. So, I hope this post will help you to solve your issue too.
That’s it for this article, make sure to give it a thumbs up and also do not forget to share this with those peoples who are facing the same kind of issue on their computers.