An NTFS Directory May Become Corrupted

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An NTFS directory may become corrupted, resulting in an error message appearing that states that a file or directory is corrupted. Note that this is not the only reason a user may see this pop-up message. The pop-up message may contain the following error:

Corrupt File
The file or directory <filename> is corrupt and unreadable. Please
run the Chkdsk utility.


NTFS incorrectly calculates the size of an internal structure. This is a very rare behavior and was only found using a very specific scenario that involved creating a large number of files under the context of the SYSTEM account. While the possibility exists to encounter this behavior in a number of ways, it is extremely improbable.


To fix the corruption after it has happened, run the CHKDSK utility (Chkdsk.exe). To prevent this behavior from ever happening, install the latest Windows NT 4.0 service pack.

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack


Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.


Article ID: 194336 - Last Review: October 10, 2013 - Revision: 1.2
  • Microsoft Windows NT Server 4.0, Terminal Server Edition
  • Microsoft Windows NT Server 4.0 Standard Edition
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