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    [Fixed] Antimalware Service Executable High Disk Usage/CPU

    The Antimalware Service Executable (Msmpeng.exe) process is part of Windows Defender, a default antivirus program on Windows 11/10 and Windows 8. In this tutorial, you will learn a few effective ways to solve antimalware service executable high disk, high CPU, or high memory usage problem.

    [Solved] Antimalware Service Executable High Disk Usage Windows 11/10 2022

    Updated by Roxanne on Apr 19, 2022 

    Written by Brithny 

    4 mins read 57

    If you found that the Antimalware Service Executable high disk usage occurs on Windows 11/10, take it easy, you're not alone. Many Windows users are encountering Antimalware Service Executable high memory problems.

    In this article, you'll learn everything about Antimalware Sevice Executable and how to fix Antimalware Service Executable high CPU issue.

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    Workable Solutions Step-by-step Troubleshooting

    Fix 1. Disable Real-Time Protection Turn off the real-time protection to solve the Antimalware Service Executable high CPU usage...Full steps

    Fix 2. Change Windows Defender's Scheduling Options Change Windows Defender's schedule is another method to solve the Antimalware Service Executable...Full steps

    Fix 3. Add Antimalware Service Executable to Exclusion List Press the Windows logo key + I at the same time to open the Settings window. Click "Update & security"...Full steps

    Fix 4. Disable Windows Defender  Press Windows Key + R to open the Run Dialog Box. In the Run Dialog Box, type regedit and click "OK"...Full steps

    Fix 5. Update All Device Drivers You can also try to fix Antimalware Service Executable high CPU issue by updating all your device drivers...Full steps

    Antimalware Service Executable High CPU/Disk/Memory Usage

    The Antimalware Service Executable (Msmpeng.exe) process is part of Windows Defender, a built-in antivirus feature that comes with Windows 11/10. You can find this on the Details tab in your Task Manager.

    Antimalware Service Executable provides real-time scanning and is responsible for checking files for malware whenever you access them. It also performs background system scans to check for dangerous software, installing antivirus definition updates, and does anything else a security application like Windows Defender needs to do.

    Its scanning relies heavily on your computer's CPU; that's why you find Antimalware Service Executable high CPU, huge disk, memory, RAM, and even network bandwidth, draining computer resources, especially after getting a Windows 11/10 update.

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    5 Ways to Fix Antimalware Service Executable High Disk Usage

    If the Antimalware Sevice Executable process takes up a high CPU on your Windows 10, don't worry. We have easy solutions for you to deal with it. Now, read this article in-depth and try the easy methods to fix the problem.

    Fix 1. Disable Real-Time Protection 

    Antimalware Service Executable high disk usage issue is large because of the real-time feature, which will constantly scan your Windows computer no matter what you do. It acts quickly and consumes much CPU storage, which leads to high CPU and memory usage.

    The most probable fix to the Antimalware Service Executable high CPU issue is turning off the real-time protection. After this, the Windows Defender won't work, and your computer will be vulnerable. So, use this method only as a temporary solution.

    Step 1. Click the "Start menu > Settings > Update & security".Step 2. Select "Windows security > Virus & threat protection > Manage settings".Step 3. Switch the "Real-time protection" setting to Off.

    Fix 2. Change Windows Defender's Scheduling Options

    Change Windows Defender's schedule is an effective way because the real-time protection feature mainly causes the error. Follow the details below and fix the Antimalware Service Executable high disk usage issue.

    Step 1. Press Windows key + R at the same time to invoke the Run box. Type taskschd.msc and press Enter.Step 2. Double-click on "Task Scheduler Library" > "Microsoft" > "Windows".Step 3. Find and expand "Windows Defender". Then double-click "Windows Defender Scheduled Scan".

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    Step 4. Uncheck "Run with highest privileges" on the property window.

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    Step 5. Uncheck all the items in the "Conditions" section. Then click "OK".

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    With the steps above, your error should be fixed now. If, unfortunately, it doesn't help you, make sure to try the second solution below.

    Fix 3. Add Antimalware Service Executable to Windows Defender's Exclusion List

    Step 1. Press the Windows logo key + I at the same time to open the Settings window. Click "Update & security".Step 2. Click "Windows Defender". Then click "Add an exclusion" in Exclusions.

    Source : www.easeus.com

    Fix: Antimalware Service Executable High RAM Usage

    High RAM and CPU usage by Antimalware Service Executable is usually caused by the Real Time Protection feature in Windows Security.

    Fix: Antimalware Service Executable High RAM & CPU Usage

    By: Waseem Patwegar

    High Resource usage by Antimalware Service Executable is a common problem reported by users. You will find below the steps to Fix High RAM & CPU Usage by Antimalware Service Executable in Windows 10.

    Antimalware Service Executable High RAM & CPU Usage

    Antimalware Service Executable (MsMPEng.exe) is a legitimate Windows service and not a virus or malware trying to cause damage on your computer.

    Antimalware Service Executable is a part of Windows Security (previously called Windows Defender), and is designed to perform security tasks in the background.

    In general, Antimalware Service can take up to 50% RAM, while Windows Security is performing a real time scan, full system scan or updating virus definitions on your computer.

    Once the background security tasks are completed, your computer should return back to normal and allocate all the resources for Apps and programs running on your computer.

    If your computer is constantly slowing down or freezing due to Antimalware Service Executable, you should be able to fix the problem using the following methods.

    1. Disable Real Time Protection

    High CPU, RAM and Disk usage by Antimalware service executable is usually caused by the Real Time Protection feature in Windows Security.

    Go to Settings > Update & security > select Windows Security in the left-pane. In the right-pane, scroll down and click on Virus & threat protection.

    On the next screen, scroll down and click on Manage Settings option, located under “Virus & threat protection settings”.

    On the next screen, turn OFF Real-Time Protection.

    Note: This method disables Windows Defender for a temporary period. Windows will automatically enable Real Time Protection, the next time you login to your computer.

    2. Disable Scheduled Tasks

    Disabling Windows Defender scheduled tasks is another way to reduce Antimalware activity on your computer.

    Open the Task Scheduler on your computer.

    In the left-pane, navigate to Task Scheduler Library > Microsoft > Windows > Windows Defender. In the right-pane, disable All the 4 Windows Defender Tasks.

    Once you disable these Tasks, High CPU usage and other problems due to Antimalware should be gone.

    3. Install Another Antivirus Program

    Windows Defender automatically disables itself, whenever Norton or any other third party antivirus program is installed on the computer.

    Once Windows Defender is disabled, you will not notice Antimalware service consuming resources on your computer.

    4. Permanently Disable Windows Defender in Windows 10

    If you do not want to use Microsoft Defender, it is possible to Disable Windows Defender permanently on your computer using Registry.

    It is a good safety precaution to create system restore point before making Registry Edits on your computer.

    Open Run Command > type Regedit in the Search box and click on OK.

    On Registry Editor screen, navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender > Double-click on DisableAntiSpyware and change its Value Data from 0 to 1.

    This will Permanently Disable Windows Defender on your computer.

    If you cannot find DisableAntiSpyware DWORD, right-click in an empty area in the right pane > select New and click on DWORD (32-bit) Value.

    Name the new Key as DisableAntiSpyware > Enter 1 in the Value Data field.


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    Source : www.techbout.com

    How to fix ‘Antimalware Service Executable’ high CPU usage

    Is your Antimalware Service Executable causing unnecessarily high CPU usage? Fix the issue and get your PC running smoothly again with four simple steps.


    How to fix ‘Antimalware Service Executable’ high CPU usage


    The Antimalware Service Executable process plays an important role in the Windows Defender Service that comes bundled with Windows 10 (and, despite the similarities in name, is completely unrelated to Emsisoft Anti-Malware!). However, it’s also infamous for consuming far more than its fair share of CPU processing power, and can even single handedly reduce your computer’s speed to a glacial crawl.

    If you’re a Windows Defender user and have noticed high CPU usage for abnormally long periods of time, you’ll be pleased to know that the issue can easily be resolved.

    In this article, we’ve put together a few simple steps you can follow to prevent Antimalware Service Executable from hogging your system’s resources and keep your machine running smoothly.

    What is the msmpeng.exe Antimalware Service Executable?

    Do you use Windows Defender to protect your computer? If so, open up the Windows Task Manager (Ctrl + Shift + Esc or Start Menu > Task Manager), scroll through the list of background processes and you will find a process called Antimalware Service Executable and its corresponding file msmpeng.exe.

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    This process allows Windows Defender to continuously monitor your computer for potential threats and provide real-time protection against malware and cyberattacks. At the same time, however, it can also be the cause of disproportionately high CPU usage.

    Another Windows Defender feature that may be responsible for slowing down your system is its Full Scan, which performs a comprehensive check of all files on your computer. Full Scan relies heavily on the CPU and is not afraid to use whatever resources your system has available; as a result, you may experience lag, delays, hanging and other system disruptions when it is running.

    While it is normal for antivirus programs to consume system resources when running a scan, Windows Defender is far greedier than most. It is known to use excessive CPU for longer periods of time and carry out scans right when you’re waking up the computer to quickly send an email or check a website.

    Although this can be frustrating, it’s important that you don’t disable Windows Defender without first installing another IT security solution – after all, it may be the only thing that stands between your computer and the bad guys! Let the program do its job, resolve any threats and then follow these steps to prevent the issue from happening again:

    Fix #1: Change Windows Defender’s scheduling options

    For most people, the high memory usage caused by Antimalware Service Executable typically happens when Windows Defender is running a full scan. We can remedy this by scheduling the scans to take place at a time when you’re less likely to feel the drain on your CPU.

    Optimize the full scan schedule.

    Open the Start menu, type “task scheduler” and click the top result to launch the program.

    In the navigation pane on the left, double click Task Scheduler Library. Continue to expand these folders and navigate to the following destination: Library/Microsoft/Windows/Windows Defender.

    When you have opened the Windows Defender folder, double click Windows Defender Scheduled Scan, located in the middle pane.

    Click the Conditions tab, uncheck all options and click OK. This will clear your scheduled scans.

    To protect your computer, it is important to schedule some new scans, but we can do this in a way that will reduce the impact on your system’s performance. To do so, double click Windows Defender Scheduled Scan, select the Triggers tab and click New.

    Create a new scan schedule that suits your needs, selecting options that strike the balance between protection and system efficiency. As a guideline, we recommend (at minimum) weekly scans at a time when you’ll be unlikely to notice the increased CPU usage.Repeat the process for the three remaining services (Windows Defender Cache Maintenance, Windows Defender Cleanup, Windows Defender Verification) found in the Library/Microsoft/Windows/Windows Defender folder.

    Fix #2: Add Antimalware Service Executable to Windows Defender’s exclusion list

    During its scans, Windows Defender checks every single file on your computer – including itself. This can occasionally result in some interesting interactions and is a common source of system lag. To prevent this from happening, you can simply instruct Windows Defender to skip itself when performing a system scan.

    Press Ctrl + Shift + Esc to open Windows Task Manager.

    In the list of processes, search for Antimalware Service Executable. Right click on the process and select Open File Location.

    Source : blog.emsisoft.com

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