I went to Best Buy to buy Windows 8 and asked for the non-upgrade (clean installation) version of it. Got the software from a salesperson who said it can be for non-upgrades (and clearly has no "Upgrade" label on the box) and after installing, lo and behold Windows is complaining that my key is no good because I didn't have a previous installation of Windows ("this specific product key can only be used for upgrading, not clean installations").
Of course, I have already referred to this but like I said the item I purchased is supposed to be for clean installs! How can I get this resolved?
UPDATE: Microsoft did help me get this fixed, but I have discovered (after some new information coming to light) that this is was a MICROSOFT problem, not with Best Buy! Background: I didn't mention that I actually bought 2 identical copies of the exact same box and product number, both Windows 8 Pro not labeled as "Upgrade" versions. Well, I thought this was Best Buy's fault because it seemed like they must have handed us 2 upgrade versions. The kicker: The other copy was for my mom, and that copy activated without a hitch. This tells me that Microsoft really screwed up here in including an upgrade-only product key in one of their full-installation boxes!! Consumer beware!