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Symptoms

Consider the following scenario:

  • You have an AMD Kabini APU-based computer that is running Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2.

  • You plug a USB 2.0 device (such as a USB keyboard or a USB mouse) into a USB port.

  • You unplug the USB 2.0 device a short time later.

In this scenario, a yellow exclamation mark appears next to the USB device in Windows Device Manager, and the USB device does not work until you restart the computer.

Resolution

Update information

To resolve this issue, install update rollup 2975719. For more information about how to obtain this update rollup package, click the following article number to view the article in the Microsoft Knowledge Base:

2975719 August 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2

Status

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

More Information

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

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

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