I used Eraser to wipe the unused space on my USB stick and it's toast. I don't trust Eraser anymore. Another thing that I have noticed is when I erase a file on my Vista 64 bit computer, the shortcut remains on the desktop for a while. It says 0 bytes but you can still see it. Does anyone know how to wipe a USB stick safely? I use to use R-Wipe. But it no longer shows my USB stick in the menu. It shows my external hard drive but not a USB stick. I downloaded BC Wipe too and it didn't list the USB stick either.