If you?re talking about NtfsMftZoneReservation then read the note (excerpt is below, bold and underline mine?s) from the following MSKB article:
Q174619 ?"How NTFS Reserves Space for its Master File Table (MFT)"
NOTE: This is a run-time parameter and does not affect the actual format of a volume. Rather, it affects the way NTFS allocates space on all volumes on a given system. Therefore, to be completely effective, the parameter must be in effect from the time that a volume is formatted and throughout the life of the volume. If the registry parameter is adjusted downward or removed, the MFT zone will be reduced accordingly, but this will not have any affect on MFT space already allocated and used.
So, you can save your data files from the second HDD, to the first (if it has available space) or to an external media.Make sure that NtfsMftZoneReservation is 1 (or 2). Format the second HDD as NTFS and move the data files back.
Trying to unweave, unwind, unravel
And piece together the past and the future,
T. S. Eliot
I've two HDD, both 40gb, both NTFS. Used the tweak for small MTF, but it only seems to work on the master HDD (C) while the slave (D) is very large according to cluster count. Any ideas as to why or how to correct to a small MFT? Win XP Home/SP1, Athlon 2800, 512mb, drives are Western and Samsung, both running at Ultra DMA Mode-5 on VIA chipset. Everything is plugged into a MSI KTV6 MoBo.