Please help! unsure how to change my password

hi i have i passport essential which i previously set up on my old laptop that has died and i want to change my password how do i do this. i have windows 8. it brings up the unlocker which i unlock but there is no settings button to change my settings ect TIA

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