> ...I am curious how the upgrade version will function
> installing over Windows XP, which is already formatted on an NTFS HD? Hope I
> didn't confuse you.
You did confuse me, and I'm still not sure why you're confused about the
upgrade. Vista uses NTFS, but seems to be very slightly modified from
XP (I don't know the details.) That's why I recommend that people let
the Vista installer reformat it's own filesystem if installing into a
pre-existing NTFS partition.
Now, I'm assuming that the upgrade process (which I've never done) does
some subtle modifications to the existing NTFS -- but the important
thing is that the Vista filesystem is still compatible with XP and W2K
if you want to multi-boot between them, as I do.
I don't think I would be brave enough to use W2K to change the file
permissions on my Vista partition, but it looks like I could if I