Tried to Set Affinity and Set Priority for the executable. Most of the Windows Defender options are grayed out and inaccessible to me. Didn't change a thing, as far as I can tell.Ĭhecked Task Scheduler. I've tried several workarounds I found from some Google searching:Īdding C:\Program Files\Windows Defender (either the entire folder or MsMpEng.exe by itself) to the Windows Defender exclusions list. This just randomly started happening a few days ago, it's never been an issue for me before in years of using Windows 10. If anything, it seems to happen more when I'm gaming than not. It does not seem to care what I'm doing at the time. I checked Task Manager and found that MsMpEng.exe (Windows Defender) is often chomping away at upwards of 30%+ CPU usage. For the past couple of days I've been getting some really nasty intermittent performance issues.
