Workaround Confirmed How To Install Vista Clean
 

If you buy a Window Vista Upgrade version, you have install an older version of Windows before you can upgrade, even if you try to do a clean install... some people have found a work-around:

"Now, however, this workaround allows users to perform a “clean install.” The process is a bit tedious, but is not hard at all to complete. Users have to perform these simple steps to perform a clean install of Vista without a previous version of Windows installed with an upgrade DVD

http://www.dailytech.com/article.aspx?newsid=5932

this is the very interesting part but this means that any retail upgrade DVD can be used as a fully functioning full retail copy of Vista.

looks like they screwed themselves with that upgrade procedure intended to make people buy the full version

I think it's rather because people might use pirated copies of an older OS; if you need XP + activation, the chances of using an illegal XP copy for a basis to upgrade to Vista will be largely diminished;

THis loophole in the upgrade process, where you "upgrade" the Vista Time Trial version is kind of a goof by Microsoft, that HA-HA pic is quite cool:)

will they fix their Vista setup?