Recuva is a freeware for recovering deleted files from you hard disk or USB drive. Recuva is a Windows utility to restore files that have been accidentally deleted from your computer. This includes files emptied from the Recycle bin as well as images and other files that have been deleted by user error from digital camera memory cards or MP3 players. It will even bring back files that have been deleted by bugs, crashes and viruses.
Using the application is pretty simple, you need to select the drive and click on the Scan button.
Once you get the list of files, you can select on files which need to be recovered and then specify the target folder.
The application also allows secure delete files.
Img Src: Recuva