contact your laptops manufacturer, because here at tomshardware, we cannot aid people in cracking passwords or bypassing them, as it is against the rules and we do not have proof of your ownership of the said laptop.
If you don't know the password to your own computer your pretty much out of luck best thing to do is contact the person you bought it from or the laptops manufacturer,hopefully they might be able to help we can not assist you as we don't know this is really your laptop and Toms hardware doesn't support Piracy!