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Se isso acontecer, há algumas ferramentas que eu recomendaria. Em primeiro lugar, PhotoRec , que é gratuito.
PhotoRec ignores the file system and goes after the underlying data, so it will still work even if your media's file system has been severely damaged or reformatted.
Como alternativa, comprei e obtive grande sucesso com uma ferramenta chamada R-Studio . Ele vem em um prêmio, mas ei, você recebe o que você paga.
Additional file recovery algorithm. R-Studio not only analyzes file systems metadata ( all file types are supported ) but additionally searches for files of known types ( see list of known file types ) using typical features of their structures that allows the user: - to increase the quality of file recovery when the file system is not damaged; - to recover files that are not recognized in file system metadata and not found during a disk scanning procedure; - to recover files from devices with unknown file systems, including HD, CD, DVD, floppy disk, Compact-Flash Card, USB drive, ZIP drive, Memory Sticks and other removable media.