Windows can turn off HDDs because of inactivity.

Are they turned off completely or sleeping or standby? Where are the differences there?

What is more harmful to the HDD, keeping it spinning or powering it down?

Or does it depend? I have the WD1002FAEX http://www.wdc.com/global/products/specs/?driveID=792&language=1

over time  what ive been noticed is that the hard drives that work more, are more durable… try to avoid many start stop cycles per day :slight_smile: