"David R" <David R@discussions.microsoft.com
> Please help
> I downloaded the Vista Ultimate RC1 a couple of months ago as an
> copy. I have now purchased Vista Home Premium upgrade but I cannot install
> it. I get a message saying I can only upgarde to Vista Ultimate. I was
> previously running XP.
> I have tried booting from the disc but it won't run.
> Any ideas?
RC1 is not a qualifying OS for using an upgrade version, and RC1 is
Ultimate. The only way to upgrade the installation you have is to use the
Ultimate full version.
You can use VHP upgrade if you go back to XP then install it. Use the
Windows Easy Transfer tool (WET) to save the data and settings, then do the
install of VHP, reinstall the applications, and then use WET to bring back
the data and settings.
There has been published a way to install Vista from an upgrade edition
without having the qualifying OS installed first, but I don't recommend it
at this point until we get more info on what happens down the line with it.
Here is a link with info on how to do it, but I don't recommend it.
Rock [MVP - User/Shell]