TestDisk is powerful free data recovery software!

TestDisk is OpenSource software and is licensed under the terms of the GNU General Public License (GPL v2+).

TestDisk is powerful free data recovery software! It was primarily designed to help recover lost partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty software: certain types of viruses or human error (such as accidentally deleting a Partition Table). Partition table recovery using TestDisk is really easy.

TestDisk can

• Fix partition table, recover deleted partition
• Recover FAT32 boot sector from its backup
• Rebuild FAT12/FAT16/FAT32 boot sector
• Fix FAT tables
• Rebuild NTFS boot sector
• Recover NTFS boot sector from its backup
• Fix MFT using MFT mirror
• Locate ext2/ext3/ext4 Backup SuperBlock
• Undelete files from FAT, exFAT, NTFS and ext2 filesystem
• Copy files from deleted FAT, exFAT, NTFS and ext2/ext3/ext4 partitions.
• TestDisk has features for both novices and experts. For those who know little or nothing about data recovery techniques, TestDisk can be used to collect detailed information about a non-booting drive which can then be sent to a tech for further analysis. Those more familiar with such procedures should find TestDisk a handy tool in performing onsite recovery.

Operating systems
TestDisk can run under

• DOS (either real or in a Windows 9x DOS-box),
• Windows (NT4, 2000, XP, 2003, Vista, 2008, Windows 7 (x86 & x64), Windows 10
• Linux,
• FreeBSD, NetBSD, OpenBSD,
• SunOS and
• MacOS X

Filesystems
TestDisk can find lost partitions for all of these file systems:

• BeFS ( BeOS )
• BSD disklabel ( FreeBSD/OpenBSD/NetBSD )
• CramFS, Compressed File System
• DOS/Windows FAT12, FAT16 and FAT32
• XBox FATX
• Windows exFAT
• HFS, HFS+ and HFSX, Hierarchical File System
• JFS, IBM's Journaled File System
• Linux btrfs
• Linux ext2, ext3 and ext4
• Linux GFS2
• Linux LUKS encrypted partition
• Linux RAID md 0.9/1.0/1.1/1.2
• RAID 1: mirroring
• RAID 4: striped array with parity device
• RAID 5: striped array with distributed parity information
• RAID 6: striped array with distributed dual redundancy information
• Linux Swap (versions 1 and 2)
• LVM and LVM2, Linux Logical Volume Manager
• Mac partition map
• Novell Storage Services NSS
• NTFS ( Windows NT/2000/XP/2003/Vista/2008/7 )
• ReiserFS 3.5, 3.6 and 4
• Sun Solaris i386 disklabel
• Unix File System UFS and UFS2 (Sun/BSD/...)
• XFS, SGI's Journaled File System
• Wii WBFS
• Sun ZFS