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Windows 7: MsMpEng.exe = CPU Usage 100%

26 Mar 2010   #1

Windows 7 Home Premium 32-Bit
 
 
MsMpEng.exe = CPU Usage 100%

Hi, i keep noticing my cpu is always at 100% and when i look into Task Manager>Processes Tab, MsMpEng.exe (in CPU column) is over 80+ and gives mixed numbers. That i believe causes my cpu at 100%.

Is there a way i can really calm my cpu and make the process "MsMpEng.exe' disable or lower its usage on cpu. And what is that process used for?

My System SpecsSystem Spec
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26 Mar 2010   #2

Windows 7 Ultimate x64 SP1
 
 

It's a windows Defender and or microsoft security essentials process.
My System SpecsSystem Spec
26 Mar 2010   #3
whs

Microsoft Community Contributor Award Recipient

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

MsMpEng.exe is MSE. It must be scanning. Look into the MSE settings. There must be something wrong. E.g. scheduled scan should be set to quick scan. If you do not have MSE, it is Defender.
My System SpecsSystem Spec
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26 Mar 2010   #4

Windows 7 Home Premium 32-Bit
 
 

Quote   Quote: Originally Posted by Airbot View Post
It's a windows Defender and or microsoft security essentials process.
Yeah, i just found out now. It is MSE. Only happens when i am scanning. But then theres svchost.exe that is also causing the cpu to be high.
My System SpecsSystem Spec
26 Mar 2010   #5
whs

Microsoft Community Contributor Award Recipient

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

There are a ton of svchost.exe - you have to find out which .dll(s) it is running. E.G with Process Explorer or task manager.
My System SpecsSystem Spec
26 Mar 2010   #6

Windows 7 Ultimate x64 SP1
 
 

svchost.exe is pretty normal to have multiple instances and somewhat high usage. It's normal, different services running under the svchost.exe

Task Manager - Show Services Running under svchost.exe
My System SpecsSystem Spec
26 Mar 2010   #7

Windows 7 Home Premium 32-Bit
 
 

Thanks for the replies. I guess its just normal. And another thing, do cpu that are quad cores get to 100% with MsMpEng.exe and svchost.exe happenning?
My System SpecsSystem Spec
26 Mar 2010   #8

Windows 7 Ultimate x64 SP1
 
 

No, not really. Well, I guess it all depends on what the cpu model is, but still probably out of the normal range. At least mine wouldn't even approach that.
My System SpecsSystem Spec
26 Mar 2010   #9

Windows 7 Home Premium 32-Bit
 
 

Quote   Quote: Originally Posted by Airbot View Post
No, not really. Well, I guess it all depends on what the cpu model is, but still probably out of the normal range. At least mine wouldn't even approach that.
I have a laptop with a single core processor. So i guess for me, it be normal. But for a duo-quad core, it wouldnt.
My System SpecsSystem Spec
26 Mar 2010   #10

Windows 7 Home Premium 64bit
 
 

Quote   Quote: Originally Posted by Brian6121990 View Post
Hi, i keep noticing my cpu is always at 100% and when i look into Task Manager>Processes Tab, MsMpEng.exe (in CPU column) is over 80+ and gives mixed numbers. That i believe causes my cpu at 100%.

Is there a way i can really calm my cpu and make the process "MsMpEng.exe' disable or lower its usage on cpu. And what is that process used for?
Here's some info on MsMpEng.exe

What is msmpeng.exe and how to remove it

msmpeng.exe - What is msmpeng.exe?
My System SpecsSystem Spec
Reply

 MsMpEng.exe = CPU Usage 100%





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