It may. Darrel didn't report that he did a reformat, but if the compliance check is done and the legacy OS is not needed anymore then it should work to reformat before starting the installation. The format tool is available when you have dvd booted. It sounds to me like it could work out like that. The kicker is that if you are running XP MCE and want to upgrade to Vista Home Premium you will be told to start Setup from the desktop since upgrade is enabled in that scenario according to the Upgrade Matrix on Get Ready. Weird, eh?

"William" <woogles@charter.net> wrote in message news:%23KEaImRNHHA.4888@TK2MSFTNGP02.phx.gbl...
Does this mean that, in an example, if I am running XP Pro and want to upgrade to Vista Home Premium, if I boot with the Vista DVD, that it will see there is a qualifying XP installed on the C: drive (lets assume there is only one partition on the drive and no second hard drive), that Vista setup will allow me to reformat the drive and make a clean install (with nothing left from the previous XP Pro install) of Vista on that drive?