Consider the following scenario:
You have a Windows RT 8.1 or Windows 8.1 based-computer that has a USB 3.0 controller installed.
You connect a USB 3.0 Bluetooth device to the computer.
You put the computer into sleep mode.
In this scenario, the computer still supplies power to the Bluetooth device unexpectedly.
This issue occurs because the Bluetooth device driver does not cancel its wait wake I/O request packet (IRP) that is pending on the IRP queue of the USB 3.0 controller. Therefore, the USB controller driver assumes that the device still requires power in order to wake up the computer.
To resolve this issue, install update rollup 2887595. For more information about how to obtain this update rollup package, click the following article number to go to the article in the Microsoft Knowledge Base:
2887595 Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 update rollup: November 2013
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates