Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: MsMpEng.exe = CPU Usage 100%

26 Mar 2010   #11

Windows 7 Professional 64-bit

You dont want to be removing it if you use MSE.

My System SpecsSystem Spec

 MsMpEng.exe = CPU Usage 100%

Thread Tools

Similar help and support threads
Thread Forum
Is it normal for MsMpEng to eat up 25% of the my CPU all the time?
It's not only during scans, it is all the time. Also people told me that it is windows defender but I think it is actually Windows Security Essentials, or is it the same thing?
Performance & Maintenance
Hello Win 7 Home premiuim,i5,1T,3,30GHz I noticed Windows Defener takes up a lot of CPU usage yet the program is turned off by default. I think it is a remnant of a previous os and not useful in Win 7. I also noticed I have to check "show for all users" for it to be displayed. I know it...
Performance & Maintenance
I looked at All system proccesses and found "MsMpEng.exe" Description: Antimalw... i not see anything. What's that O_o? Virus :sarc:?
System Security
msmpeng thrashing hdd when idle, also on a 2nd system hdd usage
HDD usages reduces life and uses power, its defenitly I dont want to see on my laptop. Am I right this is MSE, and why is it doing a scan everytime its idle? can I disable idle scanning? scheduled scan is sunday 2am, today isnt sunday and its not 2am. In addition if I run a quick scan its...
Performance & Maintenance
I have read so many posts raving about MSE, that I decided to give it a try. While it has been okay on my primary rig, I'm having a problem with MsMpEng.exe spiking the CPU to 100%. I read one thread elsewhere that said that this was due to some kind of conflict with some other process, but since...
System Security

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 01:35.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App