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Article ID: 831114 - Last Review: August 29, 2007 - Revision: 3.1

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When you resume your Microsoft Windows XP-based computer from standby, your universal serial bus (USB) keyboard or your USB mouse may not work if you resume operations by using any one of the special function keys on the keyboard (such as Volume Control). When you view Device Manager, the icon that represents your USB keyboard or your USB mouse may have a yellow-highlighted exclamation point in the lower-right corner. In this scenario, you must restart your computer to regain USB keyboard or USB mouse functionality.


This problem may occur if the USB controller in your computer resets the attached USB devices when the computer resumes from standby.


Service pack information

To resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
322389  ( ) How to obtain the latest Windows XP service pack

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: (
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language. The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
   Date         Time   Version            Size    File name	Platform
   24-Oct-2003  21:13  5.1.2600.1313     121,088  Hidclass.sys	IA-64
   Date         Time   Version            Size    File name	Platform
   11-Aug-2003  22:43  5.2.9354.0         26,112  _sfx_.dll	x86        
   27-Oct-2003  21:51                    186,287  _sfx_0000._p
   27-Oct-2003  21:51                     26,899  _sfx_0001._p
   27-Oct-2003  21:51                      1,695  _sfx_0002._p
   27-Oct-2003  21:52                      1,319  _sfx_0003._p
   27-Oct-2003  21:51                      4,587  _sfx_0004._p
   27-Oct-2003  21:51                        883  _sfx_0005._p
   27-Oct-2003  21:51                      8,871  _sfx_0006._p
   27-Oct-2003  21:51                     18,979  _sfx_0007._p
   27-Oct-2003  21:52                        618  _sfx_manifest_


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


For additional information, 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

  • Microsoft Windows XP Professional
  • Microsoft Windows XP Home Edition
kbautohotfix kbhotfixserver kbqfe kbwinxpsp2fix kbqfe kbwinxppresp2fix kbfix kbbug KB831114
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