CompuRocket Secure File Delete

This free program will securely erase any deleted file forever, thus nobody will be able to recover it even using special tools. Content of deleted file will be overwritten using random data: you can choose many security algorithms for data destruction (DDOD, Gutman, Gost). Also, you can choose number of overwrites e.t.c. The interface is simple, but the program is very professional and powerful: it's full of security features.