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MsMpEng.exe cause for 100% CPU usage
« on: September 02, 2017, 08:46:01 pm »
I am using an HP pavilion x360 laptop running Windows 10
I'm having a big problem with high cpu, when I play any game, my computer always reaches 99% cpu usage. I turned on Task Manager and detected MsMpEng.exe high CPU and Disk Usage. Is this a virus file? I tried to scan for viruses and malware but the problem persists.

Hope to help from you, if the problem persists I have to reinstall Windows 10.
Re: MsMpEng.exe cause for 100% CPU usage
« Reply #1 on: September 02, 2017, 09:25:19 pm »
Is this a virus file? I tried to scan for viruses and malware but the problem persists.
This is kinda ironic cz msmpeng.exe is the malware protection engine of Windows Defender
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Re: MsMpEng.exe cause for 100% CPU usage
« Reply #2 on: September 02, 2017, 11:47:29 pm »
Thanks! should I uninstall Windows Defender?
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    Offline Linhlz

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Re: MsMpEng.exe cause for 100% CPU usage
« Reply #3 on: September 03, 2017, 12:07:17 am »
MsMpEng.exe is basically a part of Windows Defender which is a great antivirus software which helps your operating system to protect against spam pop-ups; security threats caused by spyware or some other kinds of malware too; slow performance. Because Windows Defender provides a Real-Time Protection feature and thatís the basic reason for this problem for creating that much system usage.
Now you just stop MsMpEng.exe in Windows 10, you can try these steps:

1. Press Windows Key + R, type in gpedit.msc to open the Local Group Policy Editor.
2. Go to the following path:
Computer Configuration > Administrative Templates > Windows Components > Windows Defender
3. Choose the Enabled option to disable Windows Defender. Click OK.
4. Restart your system.

If the problem still persists, you should uninstall Windows Defender.

You can learn more this tutorial https://windowsfreeapps.com/antimalware-service-executable-high-cpu-usage-msmpeng-exe-problem-windows-10/

hope something helps you  :bye:
« Last Edit: September 03, 2017, 12:13:58 am by Linhlz »