When you have removed or deleted your sensitive files from your PC, you still need to make sure that they are not recoverable. Secure Wipe is freeware tool, which is available in portable edition as well, which allows you to remove your sensitive data from your hard drive by overwriting it several times with carefully selected patterns. The application makes sure that your deleted files are securely deleted and they are not recoverable.
The application has two options, one to delete a folder and second one to delete a single file. The settings has the option to select the eraser method. There is also option to reduce the memory usage when deleting the file securely.
Related: Securely Delete Files from Windows Context Menu
Secure Wipe is currently supported under Windows XP/Vista/Windows 7/Server2003-2008.
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