If you do purchase the program, then you have a great set of 17 choices for deleting your data:
Definitely DBan is better since you can use the DoD 5220.22-M protocol. The free version only has one way to delete the data on a hard drive (erasing with one-pass zeroes), but it’s still good enough for a decent hard drive wipe. The professional version is definitely better than DBan in terms of options, but it’s not worth shelling out $40 or $50.
KillDisk comes in two flavors: Free and Professional. If, for some reason, DBan does not work for you, you can try out the other programs mentioned below.
I’ve used this program several times and have found that it does an excellent job erasing data on many different types of hard drives. You can choose from different wipe methods including Gutmann Wipe, Department of Defense Short and Medium and others.
