Since the recent big Creators update (I'm now on 1703 Build 15063.483), while the comp. is asleep, the internal HDD regularly chunters every 3 to 5 minutes for a few seconds, as though the drive is waking up.

Why is this please?

Also, as far as I can tell, by two ext. USB HDDs seem to be permanently spinning. I know this because after they have not been used for a long time they display their contents in about 1 second, whereas before there used to be delay as they chuntererd up as they spun up.

Also why is that please?