MsMpEng.exe RRS feed

  • Question

  •  I am using windows 7 64  on my own build computer which I built in 2011. I recently installed a new security suite. In doing so I uninstalled microsoft security essentials. A couple of days ago I installed more ram. Same brand  same ddr3 1600 same latencies. only 3 years newer than previous memory . It started just fine with no problems. except now my computer will just shut down unexpectedly. I noticed in task manager I am getting several hard faults in my memory. Wwith almost everyone being registered to MsMrEng.exe.  I found out this relates to either MSSE or windows defender. My defender is disabled and made sure I had a correct registry value under disabled security. Which I found after googling it should be one which it is. Now I have tried uninstalling Msmpeng.exe with revo pro. It seemed to work and after scanning I deleted all files it found which was alot. Then it said the rest of files would be deleted after rebooting which I did. After start up it is still listed as running and still has hard faults. Since then I have tried killing process  with no effect. Went to services and properties and nothing is highlighted so I can not disabled it. I have tried deleting the folder,  items in folder with no effect  I receive a message saying I can not do that. I am using administer rights still nothing. I can suspend the process and when I do and try to use task manager to end proceess I get a not responding message. I try to delete it and windows explorer stop responding. I use a unlocker program in hope of unlocking files . It stops responding. I can not go to msse to disable it either since I uninstalled it  I am not sure if it belongs to defender or essentials while googling it seems I have seen it mentioned for both not sure though. Any help will be truly appreciated Mike.     P.S. Also when I clicked on setup exe in folder my computer shut down right now. The folder is named microsoft security clients 

    • Edited by ekim56 Sunday, March 29, 2015 6:56 PM
    Sunday, March 29, 2015 1:37 PM


  • Hi,

    Please make sure you have the latest updates for Microsoft Security Essentials. You could run diagnostics, if available from the PC maker, to insure that the hardware is in good shape. You could also run a disk check for errors

    As this is a Microsoft Security Essentials, please post a question in Microsoft Security Essentials community.


    Best Regards,


    Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    • Proposed as answer by Joyce L Wednesday, April 8, 2015 7:55 AM
    • Marked as answer by Joyce L Thursday, April 9, 2015 9:11 AM
    Monday, March 30, 2015 7:28 AM