There is no recovery media available for the WinBook tablets. There is a built in factory reset partition that will reinstall Windows as it shipped from the factory. If you are unable to access this option, or have removed it, Micro Center in-store service may be able to assist you by reinstalling original factory image. If you are able to access Windows on the tablet, here is information on how to complete the factory reset process: http://www.microcenter.com/tech_center/article/8144/how_to_reset_a_windows_10_computer_to_factory_defaults.
You can also perform a reset from the login screen if you cannot sign in by following these steps: http://www.microcenter.com/tech_center/article/9211/video_how_to_reset_windows_10_from_the_login_screen.