The update described as Surface Pro 2 firmware and driver pack, is a cumulative package that includes drivers for all the components and updates that have already been released for Windows 8.1. The update being released today is a bit odd, because today isn’t Patch Tuesday and this is a manual download from the Microsoft Download Center. This is because not every Surface Pro 2 owner needs to install this update. This firmware and drivers package is useful to repair a custom installation of Windows 8.1 Pro on a Surface Pro 2 or to prepare a custom image to deploy on an organization. Source Microsoft All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.