Microsoft KB Archive/283560

= Cannot Disable a USB Host Controller or Other USB Device After Attaching a USB Keyboard =

Article ID: 283560

Article Last Modified on 12/1/2007

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APPLIES TO


 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional
 * Microsoft Windows XP Professional x64 Edition

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This article was previously published under Q283560



SYMPTOMS
After you attach a USB keyboard to your Windows XP-based computer, you cannot disable a universal serial bus (USB) host controller, a USB root hub, or other device in Device Manager.



CAUSE
This behavior occurs because of the keyboard's being a system-critical device. Attaching the USB keyboard removes the disable option from the Properties menu for the USB device.



STATUS
This behavior is by design.

Keywords: kbprb KB283560

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