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Extremely high CPU usage, "mscorsvw.exe"

    Question

  • Have recently placed a Windows 7 Professional x86, test machine on network, built and configured by my son.  Windows update performed up to Service Pack 1, all "Security patches and .Net as well.  Norton  Security Suite Ver 5.1.0.29.  Intel Pentium 4 - 1500 MHz 1.5 GHz, w/AVI Radeon HD 5450, Rosewill SATA RC-222, Hitachi HD E721010 Class2 SCSI 1.0 TB HDD, and LG WH12LS30 BluRay Disk Burner.  It appears only one process is utilizing the majority of my CPU, "mscorsvw.exe" 2/each processes running.  How is this happening.  The anti=virus only uses 15 to 23%.  Is there a problem with the workstation built by my son?  Should I rebuild it for him?  I trying to teach him to independly tackle the world of computing...Thanx for any and all insights.

    Saturday, June 25, 2011 5:27 AM

Answers

  • I appreciate the quick response and I wish I could say this sloved my "extremely high CPU usage, but today after starting this workstation the process was not running.  I can't or should I check the "Mark As Answer"?  I'm new to the forum so I guess I need this guidance...

     

    Thanks, 'D'


    William Dyson
    Sunday, June 26, 2011 1:57 AM

All replies

  • This is caused by the .NET Runtime Optimisation Service.  Run the following at a command prompt, to see if CPU utilisation drops:

    c:\>ngen.exe executequeueditems <Enter>

    To see what this process is doing, type

    c:\>ngen.exe display <Enter>

    Before you can use ngen, it must be installed.  Please see the following article:

    http://msdn.microsoft.com/en-za/magazine/cc163808(en-us).aspx#S4

    For more information about someone who had the same problem, see:

    http://blogs.msdn.com/b/davidnotario/archive/2005/04/27/412838.aspx

    I hope this helps!


    Saturday, June 25, 2011 5:52 AM
  • I appreciate the quick response and I wish I could say this sloved my "extremely high CPU usage, but today after starting this workstation the process was not running.  I can't or should I check the "Mark As Answer"?  I'm new to the forum so I guess I need this guidance...

     

    Thanks, 'D'


    William Dyson
    Sunday, June 26, 2011 1:57 AM
  • Hi William,

    No, don't mark it as an answer if it hasn't solved your problem.  What process wasn't running?  Remember, ngen is not installed by default. 

    What steps have you taken so far?  I understand the problem remains.  We can work on this.

    I suggest the following:  Uninstall any .NET frameworks that have been installed from "Programs and Feature" under Control Panel.  Reboot the computer.  See if the problem continues.

    Sunday, June 26, 2011 7:28 AM
  • The extremely high CPU usage could also be a program causing problems with Side-by-side.  Please list any third-party applications you have installed?
    Sunday, June 26, 2011 7:30 AM
  • This is one reason I hope .NET goes away in Windows 8.

     

    Monday, June 27, 2011 3:07 PM
  • On Mon, 27 Jun 2011 15:07:36 +0000, JS2010 wrote:

    This is one reason I hope .NET goes away in Windows 8.

    Please note that .net has to do with application software, not with
    versions of Windows.


    Ken Blake, Microsoft MVP
    Monday, June 27, 2011 7:22 PM
  • Hi Dyson,

     

    Did the issue occurs?

     

    Please feel free to give me any update.

     

    Thank you for your cooperation.

     

    Regards,

    Leo   Huang

     

    TechNet Subscriber Support in forum. If you have any feedback on our support, please contact tngfb@microsoft.com

     


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
    Wednesday, June 29, 2011 8:45 AM
  • Hi,

     

    As this thread has been quiet for a while, we assume that the issue has been resolved. At this time, we will mark it as ‘Answered’ as the previous steps should be helpful for many similar scenarios. If the issue still persists, please feel free to  reply this post directly so we will be notified to follow it up. You can also choose to unmark the answer as you wish.

     

    BTW,  we’d love to hear your feedback about the solution. By sharing your experience you can help other community members facing similar problems. Thanks for your understanding and efforts.

     

    Regards,

    Leo   Huang

    TechNet Subscriber Support in forum. If you have any feedback on our support, please contact tngfb@microsoft.com


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
    Monday, July 04, 2011 1:26 AM
  • Unfortunately it doesn't. I've had a chance to play around with Windows 8. However, the preformance increase is awesome, and games preform around 10%-12% better than on Windows 7. Plus .NET has to do with application software and how applications run, not with Windows. I believe, though i could be wrong, that .NET is very essential in windows today.
    • Edited by Dylan Knox Wednesday, February 15, 2012 12:47 AM
    Wednesday, February 15, 2012 12:46 AM
  • This will happen whenever .NET 4 is updated.  It has to recompile its assemblies.

    • Proposed as answer by JMG812 Tuesday, March 12, 2013 8:07 PM
    Wednesday, February 15, 2012 4:44 PM