There are 3 main recovery modes and range from the default Quick Scan which simply reads the FAT or NTFS file system for deleted files from the recycle bin etc, to Deep Scan that also includes scanning all available free space, or Full Scan will check all space on the device for the best chance of recovery. Using the “Find lost files” option turns Puran File Recovery into a tool to recover all files from a lost or damaged partition. Something else you can do is edit the custom scan list which stores file signatures for more accurate recovery of badly damaged data.
This program is available either as a standalone tool or as part of the also free Puran Utilities suite. The standalone installer is 2.2MB in size and works on Windows XP up to Windows 8.