Is it possible? I just got the Windows Upgrade Offer (the $14.99 one) for my new laptop, but I'd like to do a clean install, to co-exist beside Windows 7 (mainly to be kept for gaming purposes). Is the upgrade offer key valid for clean installs? Also, this site put up a guide for clean-installing Windows 7 with an upgrade key. Are those methods possible for Windows 8? The version I'm getting is Windows 8 Pro with Media Center.