"Stop error code 0x0000001E," "Stop error code 0x0000000a," or "Stop error code 0x00000050" error message when IopReleaseFileObjectLock() accesses a freed file object in Windows 2000

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When IopReleaseFileObjectLock() accesses a freed file object on a Microsoft Windows 2000 Server-based computer, one of the following stop error messages may appear on a blue screen:
Stop 0x0000001E

Stop 0x0000000a

Stop 0x00000050

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.

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, submit a request to 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.


No prerequisites are required.

Restart requirement

You do not have to restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later) 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------------------------------------------------------------12-Dec-2003  17:40   5.0.2195.6882     29,712   Mountmgr.sys18-Dec-2003  01:01   5.0.2195.6885  1,699,712   Ntkrnlmp.exe18-Dec-2003  01:01   5.0.2195.6885  1,699,072   Ntkrnlpa.exe18-Dec-2003  01:02   5.0.2195.6885  1,719,936   Ntkrpamp.exe18-Dec-2003  01:01   5.0.2195.6885  1,677,376   Ntoskrnl.exe
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section of this article.
More information
For additional information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
816915 New file naming schema for Microsoft Windows software update packages
824684 Description of the standard terminology that is used to describe Microsoft software updates

Article ID: 833993 - Last Review: 11/02/2013 17:34:00 - Revision: 4.0

  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Professional Edition
  • Microsoft Windows 2000 Advanced Server
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