So I have a windows 8.1 tablet that I upgraded to windows 10 a month ago and I don't even use it anymore, It's a dell venue 8 pro and windows came pre-installed in it. Anyway, I want to build a new PC with windows 10, but I really don't want to buy another license. Is there a way I can extract the key from my tablet through "Magical Jelly Bean Key Finder" and somehow un-activate windows on my tablet to use on a new PC? (Sorry if that's a little hard to understand)