@Notyourbusiness, just curious if you tried the advice given by @Rickirs and if it changed anything. Please let us know.

I too am seeing this occur on one of my four mining rigs and I can't figure out why. It doesn't run any other apps and I know that the source of the software utilities/drivers that I've installed is trustworthy. Initially I thought this could be the anti-virus/malware engine scanning memory however I've switched brands (from Windows Defender to Symantec Endpoint Protection) and disabled all periodically scheduled scans and this is still happening occasionally. The rig is 100% nVidia 30-series now, however I used to run mixed with AMD. I thought I did a thorough uninstall/cleanup of the AMD drivers when I stopped using those cards however I used the AMD cleanup utility not DDU so I'm curious about your experience.