Just download oph crack live boot cd and burn it to any removable disk u have ( cd or usb) then boot ur computer from it . after that wait a few seconds for ophcrack run automatically or u may press enter to advance.if everything goes well u will se an NTML hash copy the hash code on a paper and navigate to crackstation.net or any other online hash code decryptor and paste the hash code there and click crack. You will then see ur passowrd and thats it.