Microsoft KB Archive/329255

= Windows XP Does Not Recognize a USB Storage Device After You Resume from Standby =

Article ID: 329255

Article Last Modified on 1/13/2006

-

APPLIES TO


 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional

-



This article was previously published under Q329255



SYMPTOMS
A Universal Serial Bus (USB) storage device may not work when you follow these steps:


 * 1) You plug the device into one USB port on the computer.You put the computer into standby (S3 power state).You unplug the device while the computer is in standby.You plug the device into a different USB port while the computer is still in standby.You resume from standby.
 * 2) You put the computer into standby (S3 power state).You unplug the device while the computer is in standby.You plug the device into a different USB port while the computer is still in standby.You resume from standby.
 * 3) You unplug the device while the computer is in standby.You plug the device into a different USB port while the computer is still in standby.You resume from standby.
 * 4) You plug the device into a different USB port while the computer is still in standby.You resume from standby.
 * 5) You resume from standby.

In Device Manager, an exclamation point in a yellow circle, with a status of Code 42 (duplicate device), may appear next to the device.



CAUSE
This problem may occur on a computer that has multiple USB controllers. Under these circumstances, the USB storage device is not recognized by Windows.



WORKAROUND
To work around this problem, unplug the USB storage device from the new USB port, and then plug it into the original port. Windows will reset and then recognize the device.



MORE INFORMATION
This problem has been confirmed to occur with the following USB storage devices:


 * IOMega USB Zip 100 Drive
 * IOMega USB Zip 250 Drive
 * ScanLogic USB Flash Drive

This problem has been confirmed to occur with the following computer models:


 * Toshiba ATR10-4

The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Keywords: kbprb KB329255

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.