Windows NT File Size and Partition Size Limits

Last reviewed: June 5, 1997
Article ID: Q93496

The information in this article applies to:

Microsoft Windows NT operating system version 3.1

The following table contains the partition and file size limitations of the various file system formats under Windows NT:

   File System   Max. Partition Size   Max. File Size
   --------------------------------------------------

      FAT              2^32                2^32
      HPFS             2^41                2^32
      NTFS             2^64                2^64

NOTE: 2^32 bytes equals 4 gigabytes, 2^41 bytes equals 2,048 gigabytes, and 2^64 bytes equals 16 exabytes (or 18,446,744,073,709,551,616 bytes).

Additional query words: prodnt gb eb
Keywords : kbfasttip
Version : 3.1
Platform : WinNT

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Last reviewed: June 5, 1997
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