From Reason Software:
Securely lets you take control of the information you don’t want anyone else to get their hands on by permanently removing the files and all of their digital hidden copies Windows never really deletes.
Permanently remove any sensitive digital information from your computer such as Word documents, Excel files, PowerPoint files, music files, videos, photos and more. Supports the Department of Defence (DoD) shredding algorithm along with various other algorithms including Schneier’s method, the Gutmann Method and our super secure paranoid method. Securely is so easy to use. Either drag and drop and files and folders right into Securely or select them in mass. And one click is all it takes to wipe them completely.