Quote: Originally Posted by Blackhawk7188
You are better off doing a clean install. You will only run into problems if you do an upgrade. Create a backup of your personal data a make a list of your current programs that you have. Its your best bet.
If you want to try and upgrade make sure that you ordered the same type of 7. If you currently 32-bit you can only(possibly) upgrade to a 32-bit retail. You cant go from 32-bit to 64-bit, just an FYI.
You may run into issues anyway since the RC is Ultimate and you are theoretically "downgrading" to Home Premium Ed. It may not even allow you to upgrade because of this.
Whichever way you chose hope it works out.
what about this idea:
1) download RC
2) delete the ei.cfg
3) install RC as home premium (that's what i preordered)
4) either not enter the ultimate key or let the installation be invalid
5) when Windows 7 retail comes out, somehow enter my valid Windows 7 key into my RC installation
6) reinstall windows 7 using the retail key/disc using the upgrade method to keep my programs