WinShred is a free file and folder shredder that securely deletes files and folders from your computer. It provides several overwriting methods including: All 0s, random data, DOD 3 pass, DOD 7 pass, Gutmann 35, and also changes the filenames for extra security.

Features:

support drag and drop files or folders onto interface

five overwrite methods (zeros, random data, DOD 3 pass, DOD 7 pass, Gutmann 35 pass)

you can add multiple items and process them at the same time

prevent registry corruption by building a fresh copy of the registry

a simple, user-friendly interface with which you can safely erase private information

free to use and doesn’t need to be installed