Why is my Windows Surface Pro fn key stuck on?

Question

It seemed like out of nowhere my Windows Surface type pad PgUp and PgDn keys stopped working, being replaced by their F11 and F12 values instead. How do I get it back to normal?

Answer 1

Per these two blog posts, there is a new update which lets you default the Fn key to being pressed instead of being off. To switch between the two, hit Fn+Caps. Note that you must press and hold Fn first, then press Caps for this to work.