Microsoft KB Archive/273484

= Windows Me May Hang During Startup with USB Keyboard and USB Legacy Support Enabled =

Article ID: 273484

Article Last Modified on 8/8/2006

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APPLIES TO


 * Microsoft Windows Millennium Edition

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This article was previously published under Q273484



If this article does not describe your hardware-related issue, please see the following Microsoft Web site to view more articles about hardware:

http://support.microsoft.com/default.aspx/w98?sid=460



SYMPTOMS
If you have a Universal Serial Bus (USB) keyboard installed on a computer with USB Legacy support enabled in the Basic Input/Output System (BIOS), the computer may occasionally stop responding (hang) while it is starting up (while the Windows logo screen is displayed). Under typical conditions, such hangs occur very rarely (usually only once every hundred or more times).



CAUSE
This problem can occur if a System Management interrupt (SMI) occurs during a very narrow time period during Windows startup while Windows is sizing the Base Address registers for the Universal Serial Bus (USB) controller if the USB controller is already enabled.



RESOLUTION
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:

http://support.microsoft.com/contactus/?ws=support

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.

The English version of this fix should have the following file attributes or later:   Date      Time      Version     Size     File name --  1/18/01   11:18am   4.90.3002   70,539   Pci.vxd



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.



MORE INFORMATION
For additional information about Windows Me hotfixes, click the article number below to view the article in the Microsoft Knowledge Base:

295413 General Information About Windows Millennium Edition Hotfixes

Additional query words: HWKEY

Keywords: kbhotfixserver kbqfe kbhardware kbprb KB273484

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