How to set HDD spindown to 10 seconds when not in

spin wdMost newer consumer drives are rated for 300k loadunload cycles (spinning upspinning down). Enterprise drives 600k. And with the timeout built in, obviously drives are made to endureI’d like to know if there is a setting within Windows 7 that will allow the 2 external hard drives in my Western Dital My Book DuoMirror to stay spinning longer.