
Now I have searched Google high and low, and I found that this is a very widespread phenomenon. But as soon as I click on another folder, then same thing starts again. Once the display is complete, CPU usage goes down to 0. It didn't take me long to find that MsMpEng.exe is using 50% CPU and heavy I/O during that time.

It can take several minutes for Windows Explorer to fully open, or to scroll down a list of documents. from Excel, everything slows down to a crawl. However, as soon as I open Windows Explorer, or try to open a file e.g. Works pretty well (Intel Core 2 Duo 2.80 GHz, 2.0 MB RAM), and programs like Acrobat, Illustrator, Photoshop work perfectly fine. Maybe someone here will know what to do.I have a "new" computer with Windows XP (SP3) installed at the bookstore where I sometimes help out. Like I said before I've contacted Microsoft and they had me do various stuff Disk Cleaning, pssst, um Temp,%Temp% and Prefetch clean up, Clean Boot and had me go into Microsoft Security Essensials and exclude the MsMpEng.exe and also msseces.exe. When I research this issue there is a problem with this exe file but with the CPU usage of it not with how memory it uses. I don't know if you need any info under the Performance Tab such as the Commit Charge and Physcial and Kernel Memory. But now I have like 1.5 GB, but still I cant afford to waste what this program is eating up. I would of bought more, but that 1GB was 81.00 + 39. So, supposedly, MSSE is the only thing in the form of Virus protection I have.unless the others are hiding in a place that I dont know of.Īnyways, I looked into Task Manager one day for something else and I noticed this exe file or program or whatever it is using up so much of my memory, which was depleting as it was because this puter is 8 yrs old!! It only has 512MB of RAM!! Well, until yesterday that is, I went to Best Buy and bought 1GB and had them install it. But I went into Add/Remove and removed all of these. In the past though I have used Norton Antivirus 2009, and something else from them, umm Norton Internet Security, I think it was. I am using Microsoft Security Essentials only, nothing else.

I don't know what other info I need regarding this matter. I have Microsoft working on this as well, with no fix in sight. Just a homeuser who needs help with this issue.
