|Please don't use all capitals when posting. It's the online equivalent of shouting and will win you few friends willing to help you.|
Take the laptop back to where you bought it - the hard drive has been locked in the BIOS with a password. To remove the lock you need the password.
Locking a hard drive would be most unusual unless the laptop had a previous owner or you've been sold a stolen one. For that reason we cannot help you further.