In this particular situation, I have normally erased a USB flash drive. I deleted the files in the USB flash drive through Windows by simply right clicking and clicking delete. This is a picture of the empty USB flash drive.
Another great software called Recuva is used to recover deleted files, and was a program that I used to recover deleted files. This is a picture of the files that were recovered by Recuva when I used the regular method of deleting files. A lot of files were detected Recuva.
DBAN does take some time to finish wiping the drive; however, the files are deleted and could not be recovered by Recuva.
Both of these programs are easy to use and are straight forward. Recuva is very user friendly and features a wizard that walks you through deleting files.
To run DBAN you will need to go into the boot menu and boot from the DBAN device. I used a CD, so I had to boot from the CD drive.