How To: Securely Erasing USB Connected Hard Disks

The conventional methods of destroying data on a disk all relate to connecting the drive physically to a computer and using some sort of bootable media with an application on it to destroy data on the connected hard disk in a secure manner. This is the conventional way. I wanted a method that would be faster and more versatile than this, so I attempted to look for a free way to destroy data securely on an externally connected USB disk in Windows.