Hi EP29,
Good day! This is Jhakesong an Independent Advisor and I will be happy to assist you with this.
I know you you have already tried a lot to troubleshoot this issue. If you haven't done this yet, try to limit it's cpu usage and disable sample sampling. Those steps are shown on the last part of this article:
https://thegeekpage.com/fix-msmpeng-exe-high-cp...
Let me know how it goes. Have a great day!
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