Just a curiosity question. I just told Spotify to move its cache from one drive to another. When I now look at the Resource Monitor spotify.exe doesn't seem to be doing anything at all basically. There is, however, a great number of reads by something called MsMpEng.exe and a great number of writes by System. I can tell it's the Spotify cache being moved because of the file paths.
I've noticed this with other applications too, like when stuff is going really slow and I wonder whats going on. I check to see what is using my drives like crazy, but all I can see is System.
What's going on here? Why can I often not see exactly what application is causing the read/write activity?