​​TestDisk & PhotoRec

▫️TestDisk is a powerful free data recovery program! 

It was developed primarily to help restore lost partitions and/or restore the boot capacity of disks if this problem is caused by software, viruses or human errors.

PhotoRec is a program for recovering lost (deleted) files (video files, documents and archives from hard drives, CDs and other media), as well as for restoring images (therefore called Photo Recovery) from the memory of digital cameras.

PhotoRec ignores file systems and "follows the data trail", so it will work even if the media's file system has been seriously damaged or formatted.

Site: