Get a related booting program, which should be a CD, DVD or usb drive (you can't start the computer, so the program installed on your computer does less help).
Nweta a yiri booting omume, nke ga-a CD, DVD ma ọ bụ eriri mbanye (i nwere ike na-amalite na kọmputa, otú ahụ ka usoro arụnyere na kọmputa gị na-eme obere enyemaka).