I have a maybe strange question, but if you don't ask, you'll never know.
I won a HP Slate 17, which is basically a 17 inch Android tablet. Any chance I will ever be able to make this thing useful and install windows 10 on it?
Geez learn to read people! This has been asked over a million times this week and the answer has been given many many many times before: Yes, all modern Windows Phone devices will receive Windows 10. End of story, that's just how it is. Only exception is for carriers that will not update for whatever reason