I need information on purchasing a product key

I accidently purchased an upgrade to Windows 8 when I meant to purchase a new install. It's in a different language, so I had a bit of trouble understanding the product information at the time.

I didn't notice it was an upgrade when installing because it was all in a different language and I only half understood what the prompts were asking me. The product key is valid, so it allowed me to install the program, but of course I have an error message that the product key can't be used now that it wants me to register it online.

I was hoping that someone could tell me how I can just purchase a product key rather than having my current upgrade windows returned. I believe that it will be a very difficult to have it returned, so I would rather just pay an extra fee to have it upgraded to the full version.

Have a look at this, http://www.eightforums.com/tutorials/13375-clean-install-windows-8-upgrade.html . If you here, Create installation media for Windows 8.1 - Windows Help and download the same, but English version. You may be able to just reinstall in English with that product code..

Thanks, but that wasn't quite what my problem was. I ended up sending back the upgrade disk and bought another one that was a full install. Thanks for trying to help.