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USB Device Is Not Recognized After Computer Starts Up

This article applies to Windows 2000. Support for Windows 2000 ends on July 13, 2010. The Windows 2000 End-of-Support Solution Center is a starting point for planning your migration strategy from Windows 2000. For more information see the Microsoft Support Lifecycle Policy.
When you start a Microsoft Windows 2000-based computer, the USB 2.0 Controller is displayed in Device Manager with an exclamation mark. When you view the status of this device, you receive the following message:
This device is not working properly because Windows cannot load the drivers required for this device. (Code 31).
Any USB device that is connected to this computer through the USB 2.0 ports will not function.
This problem occurs during Windows 2000 startup. If the USB 2.0 driver is not loaded before the other processes in Windows 2000 are started, the required resources are locked and cannot be used to load the USB 2.0 driver in Device Manager.

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.

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, submit a request to 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.


No prerequisites are required.

Restart Requirement

You must restart your computer after you apply this hotfix.

Hotfix Replacement Information

This hotfix does not replace any other hotfixes.

File Information

The English version of this 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   -----------------------------------------------------------   21-Sep-2003  00:36  5.0.2195.6824     29,712  Mountmgr.sys   02-Oct-2003  23:25  5.0.2195.6862  1,698,496  Ntkrnlmp.exe   02-Oct-2003  23:26  5.0.2195.6862  1,697,856  Ntkrnlpa.exe   02-Oct-2003  23:26  5.0.2195.6862  1,718,592  Ntkrpamp.exe   02-Oct-2003  23:25  5.0.2195.6862  1,676,160  Ntoskrnl.exe
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 about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:
816915 New Naming Schema for Microsoft Windows Hotfix Packages
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
win2k win2000 usb2

Article ID: 822568 - Last Review: 10/26/2006 20:50:31 - Revision: 2.7

  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Professional Edition
  • Microsoft Windows 2000 Advanced Server
  • kbautohotfix kbhotfixserver kbqfe kbbug kbfix kbqfe kbwin2000presp5fix KB822568