If for some reason you need to re-install the drivers on your Surface Pro, or need to update your drivers to the latest ones, the guys over at CrashCTRL have put together a list of drivers you will need.
Grab these drivers and save them in case something happens! This will save you a lot of time. The driver package contains drivers for audio, Mavell Bluetooth, Chipset, Intel USB 3.0, Intel RST, Microsoft LifeCam, Surface Accessory Device, Marvell Avastar 350N Wireless controller, and a separate download for the Intel HD Graphics 4000. The video drivers are relatively new so grab them from the download links below and save them!