This software uses selected pattern to overwrite the deleted files several times. You can use this software on mobile SD cards to remove videos and pictures before selling it to third party. Otherwise the deleted data can be recovered using recovery tools for windows.
Eraser is a free software and its source code released under GNU General Public License. Eraser is currently available for Windows Server 2003, Windows XP SP3, Windows Vista, Windows Server 2008, Windows 7, 8, 10 and Windows Server 2012.