Testdisk < 2026 Edition >

Developed by Christophe Grenier, TestDisk is designed primarily to help and make non-booting disks bootable again. Unlike standard "undelete" tools that focus on individual files, TestDisk operates at the file system and partition table level, making it an essential part of any system administrator’s toolkit. Core Capabilities of TestDisk

Repairing corrupted partition structures and fixing the MFT (Master File Table) using the MFT mirror. testdisk

Finding and restoring partitions that were deleted or lost due to software errors, viruses, or accidental formatting. Finding and restoring partitions that were deleted or

Rebuilding and recovering NTFS, FAT12, FAT16, and FAT32 boot sectors from backups. When a hard drive suddenly appears as "unformatted,"

It supports a vast range of systems, including NTFS, FAT, exFAT, ext2/ext3/ext4, HFS+, and even specialized formats like Sun Solaris or BeFS.

When a hard drive suddenly appears as "unformatted," a partition vanishes after a botched resize, or a boot sector becomes corrupted, the initial panic is universal. While many commercial solutions promise a "one-click" fix for a steep fee, the IT community has long relied on , a powerful, free, and open-source data recovery utility.