msmpeng.exe running at 95% cpu usage

This task has been running at 90% to 97% cpu usage since I brought up my system 10 minutes ago.  Also Microsoft Antimalware gets turned off.  This is running on Windows 7 RC.

Question Info

Last updated February 7, 2019 Views 146,226 Applies to:
The most common reason for high CPU is a conflicting security program left in place before installing MSE. MSMPENG also consumes a lot of CPU when scanning. If you continue to encounter a problem with high CPU usage, please file a bug report.

Bug reports are submitted via the Microsoft Connect web site for Microsoft Security Essentials.


Please be sure to review the bug submission guide:


Note that you may not receive any response to your bug submission.



Microsoft MVP Windows Live / Windows Live OneCare, Live Mesh, & MS Security Essentials Forums Moderator
Windows Insider MVP (Security), Moderator Microsoft Community

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