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Article ID: 884868 - Last Review: January 13, 2012 - Revision: 4.0

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A 0x7E Stop error occurs on your Microsoft Windows XP-based portable computer. This error may occur after you close a program that has an open handle to a file on a universal serial bus (USB) 2.0 flash storage device.

For example, a 0x7E Stop error may occur if you do the following:
  1. You connect a USB 2.0 flash storage device to your portable computer by using a USB port on your docking station.
  2. You use a program, such as Microsoft WordPad, to save a file to the USB 2.0 flash storage device.
  3. You change the file but do not save it.
  4. You disconnect the USB 2.0 flash storage device.
  5. You disconnect the portable computer from the docking station.
  6. You close the program.
You are not prompted to save the file, and a 0x7E Stop error occurs.


Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: (
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.


You must have Microsoft Windows XP Service Pack 2 (SP2) installed on your computer to apply this hotfix.

File information

The English version of this hotfix has the file attributes (or later file attributes) 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
   16-Sep-2004  20:06  5.1.2600.2515      57,856  Usbhub.sys


To work around this problem, save the file before you disconnect the USB 2.0 storage device.


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


For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
824684  ( ) Description of the standard terminology that is used to describe Microsoft software updates

  • Microsoft Windows XP Professional
  • Microsoft Windows XP Home Edition
kbautohotfix kbwinxpsp3fix kbwinxppresp3fix kbfix kberrmsg kbpending kbbug kbqfe kbhotfixserver KB884868
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