Remove the CMOS battery for about a minute and Clear the CMOS if jumpers exist. That will clear the Mobo Password.
If you have a password protected HDD.... we are sorry and we can't help you here.
You will need to get it to the WD Service center and ask them to help you out.
If its a hdd password you now have a new paperweight. Data recover would have to be done at a data recovery center which isnt cheap. There are utilities that claim to reset hdd password however they all wipe the data aswell.