Windows 10: Antimalware Service Executable Gradual Increase in RAM

So when I start my PC, I have a habit of opening task manager and always when I start my PC, Antimalware Service Executable is using roughly 3-4% of my RAM. But, by throughout the day, it increases in RAM usage little by little. By the end of the day, it's using around 15% of my RAM which just doesn't seem right. I was just wondering if there was a fix to this or if this is just a problem for me and if there are any fixes? Thanks!

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Antimalware service executable high ram usage

So my antimalware service executable(MsMpEng.exe) is using around 200mb ram and slowly keeps going up the longer my pc is on.

Ive added it to the list of exclusions and unchecked all conditions in task scheduler. Can someone tell me how to reduce the ram usage without disabling it? Because i dont have any other antivirus.

 

Antimalware Service Executable problem

I was having the same issue like for weeks on my HP Probook Ci5 12GB, the Antimalware Service Executable process was eating up massive CPU, DISK and RAM. After all the hard time I got searching the solution I finally landed on

this article which helped me.

 

Antimalware Service Executable hogging up a lot of RAM.

Hi,



Thank you for writing to Microsoft Community Forums.



I understand that you are facing high RAM usage issue due to Antimalware Service Executable.



It is one of the background-running services in Windows Defender. Antimalware Service Executable is running to scan the malware and spyware when you access them. It will detect if there’s anything harmful on your PC Aside from that, it also takes a
background scan of your system for any viruses or worms. Its scanning relies heavily on your computer’s CPU, that’s why you find it’s eating the CPU usage on your Windows 10.



To get this sorted, I suggest to follow the steps below:



Method 1:

1. Press Windows key + R, to open
   Run dialog box.
2. Type taskschd.msc and click on OK.

1. Now expand Task Scheduler Library >
   Microsoft > Windows
   
2. Select Windows Defender and on the right hand pane double-click on
   Windows Defender Scheduled Scan.
   
3. Under General tab, uncheck the box next to
   Run with highest privileges.
   
4. Select Conditions tab, uncheck all the items and click on
   OK.
   

Method 2:



Add Antimalware Service Executable to Windows Defender exclusion list.

1. Press Windows + I keys together to open
   Settings.
   
2. Click on Update &
   Security and select Windows Security.
   
3. Now click on Open Windows
   Security.
   
4. Click on Virus & threat protection
   
5. Under Virus & threat protection settings click on
   Manage settings.
   
6. Scroll down and look for Exclusions and select
   Add or remove exclusions.
   
7. Click on Add an exclusion and select
   Process.
   
8. Type MsMpEng.exe and click on
   Add.
   

Restart the PC and check if the RAM usage is high.



Let us know how it goes.



Regards,

Prakhar Khare

Microsoft Community – Moderator