So I just watch movies or listen to music from D.
what programs do you run to use these?
The temp files show on c & d so it makes me think app runs on c & creates files on d as well, for some reason.
I would perhaps watch a movie, and then see if they show, or listen to music and look.
Even though we can't find anything I would still consider a clean install and see if that fixes it.
I helped someone else with MSI files that would randomly appear but they were not temp files, it would use 25% of CPU while active. We can't even tell if these are running anything obscure.
I wonder if it would look for HWINFO. I just curious if its doing anything. if you left PC sitting idle with noting else running you could at least log sensors and see if CPU is doing anything when file was created - I assume it shows dates and times if you look at in explorer
Download HWINFO -
https://www.hwinfo.com/download/
when you open the app, click the tick box next to show sensors only, and click run
in the next window , along bottom row are a number of buttons.
Click the icon next to the onee with a clock on it, that says "logging start" when you hover mouse over it
this will open file explorer and allow you to crates a log file so its easily found again
create a new log file each time you use PC until this happens.
this isn't really solving anything, just curious if it shows any CPU activity.
What PC have you got anyway? We normally asked that question by now