Microsoft Windows features a powerful command line utility called “diskpart” that is capable of many different functions for hard drives. Some of the included functions include partitioning, formatting, clearing and assigning different areas of the hard drive in a computer. Operations done with “diskpart” can be either destructive or non-destructive. You can erase your entire hard drive with the command prompt by booting from the Windows installation disc and running the “diskpart” utility. Warnings Writer Bio

How to Erase My Entire Hard Drive with Command Prompt - 31