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While not a file-carver like PhotoRec, the repair process aims to keep existing data intact. By repairing the sector, the data inside that sector often becomes readable again, allowing you to copy files off the drive before it fails completely.

If you have a failing HDD, consider these safer, often free or open-source tools:

If HDD Regenerator does not solve the issue, consider these modern alternatives: HDD Regenerator

: It can create bootable USB flash drives or CDs to scan and repair drives from outside the Windows environment, which is often more effective. Prescan Mode

: One of the biggest drawbacks is the scan speed. On large modern drives, a full "repair" scan can take several days to complete.