It often happens to take even up to 80% of the system resources, causing the system to slow or completely lock up itself. MsMpEng.exe can even end up taking 100% of the HDD and CPU when Windows Defender is scanning the system for malware. Here’s what some users say when this happens: Microsoft Defender may get stuck on certain files while checking malware, so not taking any action isn’t an option. On the contrary, here’s what you can do about this increased HDD and CPU usage.
How can I fix high HDD and CPU Microsoft Defender usage?
In order to solve this issue, don’t hesitate to set the MsMpEng.exe file to use a specific processor in the system. It may indeed modify the scan speed of the antivirus and make it run slower than usual. However, that’s a compromise that many users are willing to accept in order to forget all about the high HDD and CPU usage. If the results aren’t as expected, you may also consider disabling Microsoft Defender through group policies on your system. However, make sure you have another great antimalware software ready to install in its place. Let us know if you also managed to solve high HDD and CPU usage in the comments area below.
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