2nd HDD start/stop every 2-3 minutes when not used

[bjorna]

I got a second HDD 3.5" for music/video and it vibrating so bad I had to unscrew it and put it on some cloth inside the case, even then I can hear/feel it.

What I want is for that drive to be in "sleep mode" when not used, but it keep starting stopping every 2-3 minutes, and I don't understand why.

It's not indexed, I checked the power options, no system files on it, only media files, I got no program checking for library updates or anything like that.

Is there some settings or any way I could make it stay off while not used?
Thanks for any help.

Win10 home, the disk is a WD Blue 2TB

 

[Sedivy]

Ok first get some proper hdd vibration dampening. Something like:
http://www.frozencpu.com/cat/l2/g33/c113/list/p1/Ultra_Quiet-HDD_Silencers.html
Do you have any hidden partitions on it? Like system recovery or boot partitions? But if you got it after installing your system it shouldn't be an issue.