Please help! unsure how to change my password

Please install the Smartware application that comes on the drive.

After that you will have the drive settings option to remove or change the password.

Please see the link bellow for more information:

Setting up security to lock or unlock a WD external drive with WD SmartWare Version 1.6.x and earlier

http://wdc.custhelp.com/app/answers/detail/a_id/3741