by PTDD Group Partition Table Doctor is the only real data recovery software for hard disk partition recovery, it automatically checks and repairs mbr, partition table, boot sector of partition error to recover FAT16/ FAT32/NTFS/EXT2/EXT3/SWAP partitions.
by DIY DataRecovery DiskPatch Partition Repair is a powerful DOS utility that helps to recover deleted partitions/logical disks on PC hard drives, repair boot sectors, run surface tests (repair bad sectors), wipe disks or selected partitions and even clone bad disks.