Possible Duplicate:
Will it be possible to upgrade from Windows 8 RC to the RTM version?
I've seen the upgrade offer from Microsoft that allows upgrading to Windows 8 from Windows XP, Vista and 7.
If I already upgraded my Win7 to Win8 release preview, do I have to downgrade first to upgrade to final windows 8 ?
Can I upgrade to final windows 8, if I did a clean install of Win8 release preview ?
Thanks in advance.
UPDATE
More to the point.
I'm not worried about settings... I'm wondering whether, if I do a clean install of RP, (for free, obviously), will I get Win 8 Pro for $40 ? Or do I have to do an upgrade from Windows 7 ?