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Windows 7: Can I automatically power down a usb external HDD

21 Dec 2012   #1

Can I automatically power down a usb external HDD

Can I automatically power down a usb external HDD.
I use an USB external HDD for backup only. I have the backup program scheduled to run at 2 in the morning and the backup takes less than an hour.
So the external HDD needs to be powered up only during that hour.
Is there a utility available that will "spin up" the drive when it is accessed and then "spin down" after an idle time?

My System SpecsSystem Spec
22 Dec 2012   #2
Microsoft MVP

Windows 7 Ult. x64

Hi Blockie,

I'm not aware of anything that will power-down a USB drive completely, but Windows does have a function to suspend power to the USB port, thereby conserving some power. If the device requires power again, the port will automatically be turned back on again

USB Selective Suspend - Turn On or Off

Perhaps others might have alternate suggestions for you.

My System SpecsSystem Spec
22 Dec 2012   #3

Win 7 Pro 64-bit 7601

Theoretically, data-storage drives like the ones employed in external drives tend to do that on their own.
I have no idea on how to find out if yours does it.
My System SpecsSystem Spec


 Can I automatically power down a usb external HDD

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