Education Trial Download issue

I'm downloading a trial version for myself and an advanced student to try out instead of Autodesk Fusion. If I say I already have a serial number, then it lets me download the file, but I don't have a serial number to start the program. If I tell it I do not have a serial number, then it doesn't like the code that I entered to be able to download a trial. Am I missing something really simple?
Thanks,
Nathan

Edu  SOLIDWORKS