ok so i had a computer that a freind gave me and he had it so certain websites were all blocked i wanted to get rid of that but i needed passwords and other log ins he didnt give me. i tried getting a hold of him no answer ever so i decided to wipe the hard drive why i dont know but i did. now my computer wont start because the bootmgr is missing and i cant start on safe the only options i have are f10 and f12. they. i cant reach my BIOS or anything and i have tried using a USB but my cpmputer wont recognize it. and to top it off my computer doesnt have a cd drive just usb ports. i have tried many thing can anyboy help me?