TestDisk is OpenSource software and is licensed under the terms of the GNU General Public License (GPL).TestDisk is a 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 Backup SuperBlock Undelete files from FAT, NTFS and ext2 filesystem Copy files from deleted FAT, NTFS and ext2/ext3 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.