High CPU usage of Microsoft Security Essentials

12 Feb

After installing MS Security Essentials – some computers/server have a high cpu usage. You can do the following to reduce/remove the problem:

  1. Run Task Manager, find the process with high CPU usage. (Sorting by CPU may help you find it)
  2. Likely you will find “MsMpEng.exe” has taken much of your CPU time
  3. Now go to  your Microsoft Security Essentials, click on the “Settings” tab. Select“Excluded files and locations”
  4. Browse to “C:\Program Files\Microsoft Security Client\MsMpEng.exe”, Ok and press Addbutton to add the file to your list of excluded files and locations. Press Save changesbutton.


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