Is there an option to enter an existing Windows 8 license key in the Upgrade Assistant?
I bought the License during my first try, but it got stuck at 62% when readying devices so I had to restore my Windows 7. Now when I run the assistant again I have only one option to buy a new License (again).
UPDATE: I found out there are to different executables, Windows8-Upgrade-Assistant.exe and Windows8-Setup.exe (I got the second one via a link from the email I received with my key).
Windows8-Setup.exe gives me the option to download Windows8 install and create an ISO or USB Drive but both options fail with this message: "Sorry, something happened and we couldn't finish creating the ISO. Restart Setup and try again."