Fastest?Easiest Win 7 Upgrade from Win RC (have XP and Vista Upgrade DVD)
I turned one of my Vista machines into a test unit for Windows 7 RC with a clean install. I have 3 Win 7 upgrade disks coming tomorrow. I would like to know the fastest and easiest way to get Win 7 on this machine. I am guessing that:
a) You can't upgrade from Win 7 RC to Win 7 Home Premium directly;
b) You can't verify your ownership of XP or Vista during the Win 7 install by entering the CD Key or putting the disk in the drive for authentication;
c) A fully authenticated and activated version of XP or Vista must be on the machine to do a Win 7 Upgrade;
d) The install twice trick from Vista upgrade does not work with Win 7 Upgrade; and
e) My XP key is no longer valid after my original upgrade from XP to Vista.
Please tell me I don't have to install Vista twice before I install Win 7 Upgrade! Maybe I can install XP and then get it authenticated by phone to Microsoft.