Microsoft KB Archive/261199

= STOP 0x50 in Usbhub.sys with Surprise Removal of Plug and Play USB Hub =

Article ID: 261199

Article Last Modified on 2/20/2007

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional Edition

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This article was previously published under Q261199



SYMPTOMS
When you unplug a Plug and Play Universal Serial Bus (USB) hub (a surprise removal) several times, the following error message may be displayed:

STOP: 0x00000050 (0xfffffffe, 0x00000000, 0xf8cf5f03, 0x00000000)

PAGE_FAULT_IN_NONPAGED_AREA address 0xf8cf5f03 in USBHUB.sys



CAUSE
This behavior occurs because the USB driver does not correctly handle the surprise removal of Plug and Play USB devices.



RESOLUTION
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack



STATUS
Microsoft has confirmed that this is a problem in Microsoft Windows 2000.

This problem was first corrected in Windows 2000 Service Pack 1.



MORE INFORMATION
For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes

Additional query words: pnp

Keywords: kbhotfixserver kbqfe kbbug kberrmsg kbfix kbhardware kbqfe kbwin2000sp1fix KB261199

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