I have SSD with operating system and operating programm which I use daily - it's small 120GB disc - and two 1TB HDD where I saved full-day work. I use HDD two times per day but they are not going on a sleep mode automatically. Is there any possible to put HDD into sleep mode in "one-click" in windows 8.1?
If you go into Advance Power Settings, under the Hard Disk dropdown you can select when to make Windows automatically turn off the hard disks. I don't know if a program like that exists, but I'm sure it wouldn't be too hard to create.