Windows 10 Technical Preview or Windows Server Technical Preview cannot resume from sleep or cannot start

Applies to: Windows Server Technical Preview


This issue occurs if the computer uses the StorAHCI driver on non-hybrid Serial Advanced Technology Attachment (SATA) disks.


This issue occurs because the StorAHCI driver enables the Power-Up in Standby (PUIS) feature for non-hybrid SATA disks. However, the BIOS does not send a spin-up command to the disk that has the PUIS feature enabled.


To resolve this issue, we have released an update for Windows 10 Technical Preview or Windows Server Technical Preview.

Windows Update

This update is available from Windows Update.

Update information


There is no prerequisite to install this update.

Registry information

To apply this update, you do not have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this update.

Update replacement information

This update does not replace a previously released update.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

About PUIS

PUIS is a specific hard disk drive (HDD) feature that enables the drive to spin up only when it is necessitated by a command, instead of when turning on the computer. This feature helps save energy or enables staggered spin-up times for multiple disk drives.


See the terminology that Microsoft uses to describe software updates.