How to restart my Asus Eee Pc 1005 HAB to factory settings?

I need to know how to restart my laptop to factory settings i've tried to use F9 but thats not working i keep getting a windows 7 thing ive looked it up and people say to press F2 to go to BIOs utility settings and go to Boot booster and disable it but i dont have a Boot Booster and i cant use a CD to do it because i dont have a CD so how do i make my laptop restart to factory settings???? I've everything! Help!