I bought a used macbook with os x on it, so i went to restore it, cleaned all the hard drives, then went to choose install a fresh os x, and it told me to enter my apple id and i did, and it tells me that i did not purchase os x, so now i am stuck on a utilities screen and have no idea what to do now, i currently downloaded a os x off my windows pc onto a flash drive, is there a way i can install it with a flash drive to get out of the utilities screen? If so how?