High CPU usage by Antimalware Service Executable > Microsoft Defender, when Windows Firewall turned off

Question

Hello,

I am using a Windows 10 Pro edition, 64-bit, version 20H2, OS build 19042.1466, on an HP ENVY 17 laptop, processor Intel(R) Core(TM) i7-10510U CPU @ 1.80GHz 2.30 GHz, 32.0 GB RAM. I became aware of high CPU usage for "Antimalware Service Executable > Microsoft Defender Antivirus Service" (from 40-70% of CPU usage at any given time). I read online this could be fixed by turning off Windows Defender (I have other anti-virus software installed). However, even with Windows Defender turned off, "Antimalware Service Executable > Microsoft Defender Antivirus Service" remains listed on Task Manager, at 43.5% CPU. I believe this is significantly slowing my PC down - combined CPU usage is now 97-99%. Any assistance is appreciated. Thanks.

Answer 1

I found I could solve the problem by just stopping and restarting a single service called "Dell SupportAssist Remediation". (I had noticed that the Dell service was also using a lot of CPU.) Can anyone explain why this is happening?

Answer 2

Hello! Dude.

I'm Allen, once I have also gone through with the same issue " Antimalware Service Executable’ High CPU Issue on Windows 10" as I am also a Windows 10 user, but I get my problem by the simple steps. which I want to share with you.

Nothing you have to do just follow the simple steps which are mentioned below to resolve your problem: -

• Disable Windows Defender with the Registry Editor.
• Change the schedule for Windows Defender

If you want to know about the resolving process in detail, then kindly visit the site given: -

https://www.globalmagzine.com/fixed-antimalware-service-executable-high-cpu-issue-on-windows-10/