Long Filenames Cause Problems with Earlier Versions of MS-DOS

Last reviewed: April 17, 1996
Article ID: Q118493
The information in this article applies to:
  • Microsoft Windows 95

SYMPTOMS

One or more of the following symptoms occur while you are running MS-DOS 6.22 or earlier:

  • In a directory listing, the volume label is reported incorrectly.
  • When you try to remove a partition, Fdisk reports the following error:

          Volume label does not match
    
  • The Label command reports the following error when changing the volume label:

          Cannot make directory entry
    
  • Symantec Norton Disk Doctor reports files with names such as AA, AB, and AT are too long or too short. Nothing is corrected when Norton Disk Doctor tries to fix the files.

    NOTE: The SCANDISK command in Windows 95 reports no errors.

CAUSE

By design, Windows 95 stores long filename information in directory entries adjacent to the file being stored. These directory entries have the Read- Only, Hidden, System, and Volume Label attributes set. Earlier versions of MS-DOS recognize these entries as the volume label. As long as you continue to run Windows 95 and use long filenames, the volume label is unchangeable.

RESOLUTION

If you have removed Windows 95 from your system and want to correct the volume label, use one of the following procedures:

Windows 95 Startup Disk Method

  1. Obtain a Windows 95 Startup Disk that contains the LABEL.EXE command line utility for Windows 95.

  2. Boot with the Startup Disk and type the following command:

          label <drive>:
    

    where <drive> is the drive with the unusual volume label.

  3. When prompted, enter a new volume label.

NOTE: If this procedure does not work, then the MS-DOS 6.x method below must be used.

MS-DOS 6.x Method

  1. Back up your hard disk.

  2. Reformat the disk. For example, type the following at the MS-DOS command prompt and then press ENTER

          format <drive>: /s /v:<label name>
    

    where <drive> is the drive with the unusual volume label and <label name> is the new volume name you want to use.

  3. Restore your files.

MORE INFORMATION

Most disk utilities need to be updated to function properly with long filenames.

Norton Disk Doctor is manufactured by Symantec, a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.


KBCategory: kbenv kbprb kb3rdparty
KBSubcategory: wpp95 win95 diskmem lfn
Additional reference words: 95 3rdparty ndd


THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Last reviewed: April 17, 1996
© 1998 Microsoft Corporation. All rights reserved. Terms of Use.