DOCUMENT:Q101703  22-JUL-1993  [W_NT]
TITLE   :INF: Windows NT Tries to Duplicate MS-DOS Drive Letter Scheme
PRODUCT :Windows NT
PROD/VER:3.10
OPER/SYS:WINDOWS
KEYWORDS:

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The information in this article applies to:

 - Microsoft Windows NT operating system, version 3.1
 - Microsoft Windows NT Advanced Server, version 3.1
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Windows NT attempts to assign drive letters to partitions in the same
manner that MS-DOS does. However, there are cases in which drive
letter assignments are not the same. Consider the following example in
which a system has two hard disks, each of which has two partitions:

   Windows NT assigns drive letters as follows:

      --------------------
      | C: FAT | E: NTFS |
      --------------------

      --------------------
      | D: FAT | F: FAT  |
      --------------------

   However, MS-DOS assigns drive letters as follows:

      --------------------
      | C: FAT | Unknown |
      --------------------

      --------------------
      | D: FAT | E: FAT  |
      --------------------

Because MS-DOS does not recognize the NTFS partition, it marks the
partition as "unknown" and does not assign it a drive letter.

   NOTE: In Disk Administrator, you can customize the drive letter
   assignments by choosing Drive Letter from the Partition menu.

Additional reference words: 3.10
KBCategory:
KBSubcategory: MDOS FILSYS

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