Article ID: 929755 - View products that this article applies to.
When you start a computer that is running Microsoft Windows XP Service Pack 2 (SP2), the Chkdsk tool automatically starts scanning a disk. Also, an error message that resembles the following is logged in the System event log:
After the Chkdsk tool finishes scanning the disk, you cannot access the files on the disk.
Event Type: Error
Event Source: Ntfs
Event Category: Disk
Event ID: 55
Computer: computer name
Description: The file system structure on the disk is corrupt and unusable. Please run the chkdsk utility on the volume disk letter.
This problem occurs because of a corruption in the master file table (MFT) on the disk.
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. 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:
http://support.microsoft.com/contactus/?ws=supportNote 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.
PrerequisitesThere are no prerequisites for installing this hotfix.
Restart requirementYou must restart the computer after you apply this hotfix.
Hotfix replacement informationThis hotfix does not replace a previously released hotfix.
Registry informationTo use one of the hotfixes in this package, you do not have to make any changes to the registry.
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 item in Control Panel.
Windows XP, x86-based versions
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 software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/824684/LN/ )Description of the standard terminology that is used to describe Microsoft software updates