MCSE Guide
HPFS High Performance File System is the file system used with OS/2. Windows NT 3.51 supported partitions formatted with HPFS , but it did not support formatting new drives as HPFS. In Windows NT 4.0, the support for HPFS was eliminated.
File Systems that windows supports
Win 95
NT 3.51/4
2000
Fat
yes
Fat 32
95/ORS2
no
NTFS4
NT 4
NTFS5
NT 4 with service pack 4
HPFS
NT 3.51