BCWipe cannot be used for wiping an entire hard drive. Jetico has a separate product for this purpose: BCWipe Total WipeOut.

Wiping an entire hard drive (or all hard drives) on a computer with BCWipe Total WipeOut is a simple procedure - just boot the computer using a BCWipe Total WipeOut bootable disk (CD/DVD or USB flash drive) and confirm wiping.
Learn more at http://www.jetico.com/wiping-bcwipe-total-wipe-out.