4Neurons Eraser 1.6 (Buy Now and save $2.50)

4Neuron Eraser allows you to delete files from your computer the way, it won't be possible to recover them using any file recovering software or even by giving your hard-drive to the professional company that specialize in data recovering. 4Neurons Eraser will permanently erase these files from your hard-drive, by overwriting their content with random data, sector by sector. You can use it to destroy the content of any file on your hard drive.