Recuva

Recuva (pronounced "recover") is a freeware Windows tool that can recover files that were mistakenly deleted from your computer. This includes files removed from the recycle bin, as well as photographs and other files erased by mistake from digital camera memory cards or MP3 players. It can also recover files that were destroyed by bugs, crashes, or viruses.

Did you accidentally delete a crucial file? Have you lost files due to a computer crash? No problem! Recuva can recover files from your Windows computer, recycle bin, digital camera card, or MP3 player!

Features & Highlights

Superior file recovery.
It can recover photographs, music, documents, videos, emails, and other file types that you may have lost. It can also recover data from any rewriteable media, including memory cards, external hard drives, USB sticks, and more! 

Recovery of damaged disks
Unlike other file recovery software, Recuva can recover data from damaged or recently formatted devices. Greater flexibility equals a higher probability of healing. 

Deep scan for buried files.
It includes a powerful deep scan mode that searches your drives for any evidence of deleted items.

Securely remove files. 
Sometimes you wish to delete a file permanently. The app's secure overwrite capability uses industry- and military-standard deletion techniques to ensure that your files are permanently destroyed.

Also available: Recuva Portable!