Hi @vip_aha ,
Are you sure that it was "idling"?
Did you check the activity percentage in ''Task Manager > Processes > Disk'' in case there are background activities going on that you're unaware of?
Clicking the arrowhead next to the ''Disk'' in the column will show which process is using it the most at the current time.
Also check in the ''Start Up'' tab to view what programs are being loaded at startup, which may not be necessary and may be causing unwanted disk activity
Here’s an image that may help
[image|2293483]
(click on image to enlarge for better viewing