prabal34 :
I noticed some of the FN+Fxx keys don't work, specifically F1, F2, F3, F11, F12. Any ideas as to how we could get this to work in windows 7?
Your Fn+ F2 and F3 (brightness adjusters) should be working. The only ones I don't have are the Fn+F1, which was just some samsung options menu (not very useful to have), and the Fn+ F11 and Fn+ F12 which I suppose is a little unfortunate they aren't working, but fan control isn't very necessary and wireless can be turned off/on manually. Sure it will require more work but it's still less than the work required in Windows 8.
I still looked around though, considering the NP300E5C-A01UB is also a series 3 Samsung with Windows 7, I figured maybe they would have a driver for the function keys... but alas I found none. I searched around more but it feels a little hopeless. I'd love to help you and I'm sorry I can't, but my main concern with this guide was to get everything essential to work and I currently don't have much time to fiddle with drivers. If anyone has a solution you are more than welcome to.