Many secure deletion programs integrate into the system shell, but Freeraser is free from the entanglements of installation and administrative privilege. After running the stand alone application, a temporary trash can is placed on your desktop.
You can adjust its size and transparency in the options menu—I have it set to one of the larger sizes in the screenshot. Files dragged into it are deleted, and their location on the disk securely erased. You can specify three levels of secure deletion: fast will do one overwrite of random data, forced will do three rounds of DoD approved overwrites, and Ultimate will do a 35 round Gutmann Pass,Freeeraser is freeware for windows only.
*Selected items will be completely destroyed without an option to recover info.