Call the person you bought the laptop from and ask them for the password or instructions on this...
If they can't help then I would ask for my money back...
Failing this... you could pull the hdd from the laptop and put it in a pc and format it.
Then install a fresh windows os on it.
hope this helps..JQ
Reformatting will not remove a HDD password.
IT is tricky to remove a HDD password, and we don't help recover passwords on this site incase the items are stolen. Go ask for your money back.
None of the above suggestions will help you recover the password.