I'm trying to secure a public computer that's running Windows 7 Home Premium (see How to secure a public computer? for other discussion). Unfortunately it turns out that Windows Home Premium doesn't have gpedit.msc. :(
I don't think there's any way of running gpedit.msc on Home Premium. I have a key for Windows 7 Business edition, however, that I could use.
Can I simply change the product key to a Business key? If so, will that work? Will Windows 7 just upgrade itself automatically for me?