In message <uxz#a#NOHHA.4100@TK2MSFTNGP04.phx.gbl> "Colin Barnhorst"
<colinbarharst@msn.com> wrote:

>Custom will not reformat the drive because x86 upgrade editions have to run
>from the desktop and you cannot reformat the system partition while its OS
>is running.


Assuming it reboots at least once, it's possible to complete a format,
if Microsoft had so desired.

>However, Vista is always installed by laying down an image
>rather than the old file-copying methodology used by XP and earlier.


Understood.

>Since
>the formatting is inherent in the image, there are no issues about leftover
>code from the previous OS. The remainder of the drive is not reformatted
>but all the old stuff should be rolled into the windows.old folder which can
>be deleted.


Interesting. However, how about all the other junk Windows leaves
laying around the drive? Program Files comes to mind, although it's not
the only one.

--
Seriously, have you ever talked to a woman without
having to give your credit card number?
-- Triumph the Insult Comic Dog