For those that care or wondered if you can 'Clean-Install' the Upgrade, I can confirm that yes you can. I've been running the RP and for $39.95 and after some research decided to take the gamble. I did see some other discussion, including getting the $14.95 Promo for a Win 7 machine purchase, which I did Bonus ! and here's what I did and it was very easy !
1.) Go to Windows 8 site for the $39.95 Upgrade and start the 'Upgrade Advisor' that begins the purchase process.
2.) The advisor checks your rig for compatibility, and I assume it checks if you are running a valid Windows Copy, then gives you a report on
your devices compatibility. Also I assume it checks if your running a 32 or 64 bit os.
3.) Complete the purchase process, entering the promo code if applicable, pay and the download begins. also it sends you an email with the
Product Key.
4.) When the download completes you have the option to go ahead and run the 'Upgrade' or 'Burn the .iso to Media' choose this and burn an
install disc. Also it shows your Product Key here too.
5.) Restart your PC, set your boot to dvd drive, insert your Win 8 disc and your off ! You will get the usual 'Accept License' screen and then the
'Install Now' screen, hit that and you will enter your Product Key next.
6.) The next screen is where you choose 'Custom Installation' and click 'Advanced Drive Options' to delete any existing partitions. From this
point your drive is 'Clean' just unallocated space that you can make a partition if you want.
7.) Highlight where you want to install windows and the rest is history, it auto-completes, you run some initial set-up and you have a fully
activated copy of Windows 8 Pro !!