A:AnswerOnce again, HP seems to be unaware of its own specs: in the "Features" section, it clearly states: "5MP IR camera," and infrared is what you need for Windows Hello sign on.
A:AnswerAt least 1TB, maybe more. I took a quick look at Best Buy's listings (hey, you could do that too--isn't that amazing?) and saw 1TB SSDs starting at around $60.