Remap Surface Type keyboard "special keys" to standard function keys
Press Fn + Caps
This will toggle the Fn key so that F-keys are the default.
You may need to install/update the "Trackpad Settings" app and install all your Windows Updates -- I think this keyboard shortcut may have came in a recent update.
Also, I beleive this fix currently only works with Surface Pro + Type Cover. Please post a comment if you can confirm it works on others combos (RT, Touch Cover)...
Enjoy! :D
If you Press Fn+Caps keys the same time, you would be able to toggle the lock on the function keys.