How to get pressure sensitivity on Photoshop with Surface Pro 4?

[Windows Central Question]

I recently got a Surface Pro 4 so I can do my Photoshop work on the go. Unfortunately, there doesn't seem to be any pressure sensitivity when I use it. I tried to look up solutions online and found/installed Wacoms "Feel It" driver. The driver only gave me this message: "A supported tablet was not found on the system." I don't what to do from here, so if anyone can help that would be greatly appreciated! Thank you!