Actually you can do a clean install of Vista Upgrade.
You have to do a clean install of Vista, then do an upgrade install
of Vista on top of the clean install. Basically, installing Vista twice.
Pain in the butt, but it can be done.
Instructions:
http://windowssecrets.com/comp/070201#story1
"Tom" <noway@nothere.com> wrote in message news:toKdnR_JQdKynlLYnZ2dnUVZ_rSjnZ2d@insightbb.com...
>
> "WGD" <wgd.roaming@verizon.net> wrote in message news:laDzh.384$yg7.41@trnddc08...
>> Pls, what is the downside of installing Vista-Premium Upgrade over installing a 'full' (from
>> scratch) version?
>>
>> Wayne
>>
>
> When you say "from scratch", I take it as a totally clean installation? If so, there is no
> difference, you get the same as the full install, and it is considerably cheaper. The only
> downsides to the upgrade version(s) are, you have to have a compatible Windows OS already
> installed, it cannot be done from a formatted disk, where one would use their previous OS as
> proof, as you could in XP.