A USB mouse that is connected to a USB 2.0 EHCI host controller does not respond after you restart a Windows 2000-based computer (820945)



The information in this article applies to:

  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Professional
  • Microsoft Windows 2000 Advanced Server

SYMPTOMS

A USB mouse device connected to an USB 2.0 Enhanced Host Controller Interface (EHCI) host controller does not respond after a Windows 2000-based computer restarts.

CAUSE

This problem occurs because the USBport.sys driver incorrectly identifies the USB EHCI host controller as a Standard Enhanced PCI to USB host controller and Windows 2000 cannot detect the USB mouse.

RESOLUTION

Hotfix information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

To apply this hotfix, you must have Windows 2000 Service Pack 3 (SP3) or Service Pack 4 (SP4) installed.

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 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
   ----------------------------------------------------------
   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

STATUS

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

MORE INFORMATION

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 software update packages

824684 Description of the standard terminology that is used to describe Microsoft software updates

822568 USB device is not recognized after computer starts up


Modification Type:MinorLast Reviewed:10/13/2005
Keywords:kbBug kbfix kbQFE kbWin2000preSP5fix KB820945 kbAudITPRO kbAudEndUser