Turn off HDD in Win8

ftball

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Feb 15, 2013
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Hello. I have a SSD and HDD in my laptop, which dual boots(win8 and ubuntu). In Ubuntu, HDD is off, making no sound at all, because it is not accessed by OS. In windows, however, it always is clicking, because every now and then windows decide to write something in the disk, though no applications are open from the disk. What's funny, is that even when I unmount the disk(Disk Management -> Offline), it still is spinning(APM is set for 1 minute). Any ideas?
 


When you installed 8, did you do so on to a blank SSD? i.e. pure unallocated space??If not, and your HDD was available, your 8 installation probably created the 350Mb System Reserved partition on the HDD. (Though quite why it would want to access it after boot I don't know...)
 

ftball

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HDD was physically detached during installation.
Still, Windows is odd. In Ubuntu, unmounted disk is unmounted. That's final. In Windows, however, when disk is Offline, it still gets attention from OS.
 

ftball

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Well, just any random content, including half of Windows 7, fully working Ubuntu 12.04, and some other irrelevant to the problem content. It's irrelevant because system does not fail if HDD is detached.
 
Well, I run Windows 8 from an SSD with all User folders on a separate HDD, the HDD is stopped automatically when not used, I know because I can hear it spin up when I open, say, a Word Doc. It's always done so since I installed 8, never had to set it up especially...
 
windows 8 will check all of your attached drives for errors and will repair them in a background process run by the system. Windows should spin down the drive after it is done with the checking.

you might run diskmgmt.msc and delete the drive letter for the volume you don't want windows to touch. this might prevent the system idle process from attempting to do background repairs on your drive.
 

ftball

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Just tested how long it takes for hdd to spindown. It took 5 minutes, when the time is set to 1 minute. During those 5 minutes, the disk kept ticking(which means its idle in Samsung-Seagate disks). So, Windows, as usual, is hiding something from user...
 

Is Optimisation turned on or off?

 

ftball

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I know nothing about this Optimisation.

 

Rt click HDD in File Manager, Properties, Tools, Optimise.
It's probably turned off, and I now suspect it only affects the drive when scheduled unlike another 3rd party software which runs in the background. Just a thought...

 

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