This is a high-tech question that invites a simple answer. The subject is more general than Windows 7, but this is where the most interest will be.
NTFS has gone through minor improvements over time, and after trying to plumb the depths of the technicalities about it, it appears that the most recent version is 3.1. This stuff is way over my head, but permissions are tied closely to it, and they are important in Win 7. Is there a new version with Windows 7, and if so should users who are performing a clean install (nix to dual- or multi-boot) have the installation perform a full format of their drive instead of a fast format? I am assuming that a full format would provide the latest version of NTFS.