There is also a slight performance disadvantage between a FAT32 converted to
NTFS volume, vs. a volume formatted with NTFS initially: the placement of the
MFT may not be as optimal in converted volumes and reduce performance
slightly when compared directly.
> The side effect is that you cannot get an access to NTFS from DOS easily :)
>
> Real side effect is the converted NTFS cluster size - it's 512 B only, and
> degraded disk subsystem performance. You'd need 3rd-party software to return
> back to default cluster size as of 4 KB.