Service Host(Local Restricted & Local System & No Network) high usage


  • Hello, On a Windows 8 - I have been experiencing high usage from network host.  I want to narrow down what program is causing this.   Sometimes, memory usage is so high that it alerts my security

    Any assistance is helpful

    Wednesday, July 24, 2013 2:22 PM


  • Make a xperf trace to see the cause. Install the WPT (, open a CMD prompt with admin rights and type this:

    xperf -on latency+ReferenceSet -stackwalk profile+VirtualAlloc+VirtualFree -buffersize 1024 -MaxFile 512 -FileMode Circular && timeout -1 && xperf -d highCPUUsageMemTracing.etl

    after you captured 30s of the cpu usage, go back to CMD prompt and press a key to stop the logging. Now compress the highCPUUsageMemTracing.etl as 7z (LZMA2, ULTRA) to reduce the size. Upload this file to your SkyDrive or Dropbox and post a link here.

    "A programmer is just a tool which converts caffeine into code"

    Wednesday, July 24, 2013 7:26 PM