Article ID: 909916 - View products that this article applies to.
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Consider the following scenario. You install Microsoft Update Rollup 1 for Microsoft Windows 2000 Service Pack 4 (SP4). Then, you switch the FAT file system-based removable media that is currently in the computer. In this scenario, you receive a Stop error message that is similar to the following:
Note The parameter values may vary.
STOP 0x00000050 (parameter1, parameter2, parameter3, parameter4)
Page Fault in Non-Paged Area
For example, this problem may occur when you remove a floppy disk, insert a new floppy disk, and then try to read the new floppy disk. This problem may occur with any removable media that has a FAT file system format.
This problem is caused by a bug in the version of the FastFat.sys file that is distributed in Update Rollup 1 for Windows 2000 SP4.
Hotfix informationA 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:
PrerequisitesYou must be running Windows 2000 SP4 to install this hotfix.
Restart requirementYou must restart the computer after you apply this hotfix.
Hotfix replacement informationThis hotfix does not replace any other hotfixes.
File informationThe 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.
Collapse this tableExpand this table
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about Update Rollup 1 for Windows 2000 SP4, click the following article numbers to view the articles in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/900345/ )Fixes that are included in the Update Rollup 1 for Microsoft Windows 2000 Service Pack 4 that is dated June 28, 2005
891861For more information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/891861/ )Update Rollup 1 for Windows 2000 SP4 and known issues
816915For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/816915/ )New file naming schema for Microsoft Windows software update packages
(http://support.microsoft.com/kb/824684/ )Description of the standard terminology that is used to describe Microsoft software updates
Article ID: 909916 - Last Review: November 2, 2013 - Revision: 3.0