Possible Duplicate:
Will it be possible to upgrade from Windows 8 RC to the RTM version?
I have laptop with Windows 7 that came on it. I have a key on the back of my laptop. Now I replaced the hard drive with the SSD drive and installed Windows 8 RP on it from the scratch. Will I be able to purchase upgrade key for Pro version upon release date 26 Oct?
Also can I upgrade simply from my Windows 8 RP to Pro version or do I need to reinstall it?
You won't qualify for the $14.99 Upgrade Offer unless you have bought/buy a Windows 7 PC between June 2, 2012 and January 31, 2013.
You can always purchase the $39.99 upgrade though (max 5 upgrades per person; price valid till January 31, 2013 at least), or the $69.99 upgrade with the DVD. The RP can be upgraded and qualifies for the offer, even if it was a clean install.
As per this article a clean install of the RTM version is possible using the offer, but you will initially need to use the Upgrade Assistant to qualify the PC, which probably means you'll need a genuine key for Windows 7 at hand.
