Hdd problem with sleep mode in Windows 7

When the computer goes into suspend, it hangs the hard drives, and doesnt spin them down.

Im using win 7, 64, and I am wondering if theres a control panel or something that governs how the computer suspends itself.

 Im curious to know if you have ever heard of HDD's that do not have the spindown feature in them.

 Why I am curious, is that these 2 250GB HDDS came out of a raid array, and they are spec built to be continuous (for server type use that never spin down)

which may be the problem.

 I dont know if its Hardware or software.


Question Info

Last updated November 4, 2018 Views 501 Applies to:



Check the Power settings and see if that helps you. Do this as mentioned below.


1.      Open Power Options by clicking the  Start button, clicking Control Panel, clicking System and Security, and then clickingPower Options.

2.      Under the plan that you want to change, click  Change plan settings.

3.      On the  Change settings for the plan page, click Change advanced power settings.

4.      Under Advanced settings expand Hard disk and make changes. Click OK.






Some hard disks come with a utility which you can tell it to spin. So if this is a hard drive that comes with such utility, then try using the same and check.


You may also contact the hard drive manufacturer to get more information on this.


Check if there are any changes in BIOS(Basic input/output system) that you can make. For hard disk these are the changes that you can make from the Operating System.


Note:Modifying BIOS/complementary metal oxide semiconductor (CMOS) settings incorrectly can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the configuring of BIOS/CMOS settings can be solved. Modifications of the settings are at your own risk.

Syed N – Microsoft Support
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