Microsoft KB Archive/942237

= Error message after you wake a Windows XP-based computer from standby or from hibernation: &quot;Stop 0x0000007E SYSTEM_THREAD_EXCEPTION_NOT_HANDLED&quot; =

Article ID: 942237

Article Last Modified on 9/26/2007

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APPLIES TO


 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional

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SYMPTOMS
After you wake a Windows XP-based computer from standby or from hibernation, you may receive the following error message:

Stop 0x0000007E (c0000005,,  ,  )

SYSTEM_THREAD_EXCEPTION_NOT_HANDLED

This problem occurs if you remove a USB device when the computer is on standby or in hibernation.



CAUSE
This problem occurs because of a race condition in the USBHUB driver.

When the computer wakes from standby or from hibernation, the USBHUB driver checks the device object for the USB device. However, if you remove the USB device when the computer is on standby or in hibernation, Windows XP may reference a null pointer for the device object.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
Important We do not recommend that you remove the USB device from the computer when the computer is on standby or in hibernation.

Keywords: kbexpertiseadvanced kbwinxppresp3fix kbprb kbpubtypekc kbqfe kbhotfixserver KB942237

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