TestDisk
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. Fix partition table, recover deleted partition. Recover FAT32 boot sector from its backup. Rebuild FAT12/FAT16/FAT32 boot sector. Fix FAT tables. Rebuild the NTFS boot sector. Recover the 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.
Learn more
Hetman Partition Recovery
Partition Recovery™ will reliably restore information from damaged FAT/exFAT, NTFS/ReFS, APFS/HFS+, Ext4/3/2/ReiserFS, ZFS and XFS/UFS disks, recovering the original file and folder structure. In addition to existing partitions, the tool discovers all previously created volumes. This allows the user to search and recover files from those deleted volumes. The tool can save the entire logical drive, recovering the original file and folder structure. Supporting all versions of file systems used in all versions of Windows, MacOS, Linux and Unix, this hard drive recovery software can fix problems in storage media of any kind and capacity. Convenient step-by-step wizard and friendly graphical user interface make the recovery process as easy as one-two-three. Partition Recovery™ is Hetman Software top of the line data recovery solution. Fully supporting FAT / exFAT (memory card or USB drive), NTFS / ReFS (Windows), APFS / HFS+ (Apple MacOS), Ext2 / 3 / 4 / ReiserFS / XFS / UFS / ZFS.
Learn more
Disk Drill
Disk Drill is a free data recovery software for Windows (XP, Vista, 7, 8 and 10 supported). It combines expert data recovery tools with utmost simplicity: Deep Scanning and Quick Recovery, powerful lost partition search and several file system healing methods, all within a free recovery of up to 500MB of lost data. Your storage device may be running on any file system: NTFS, FAT, HFS, EXT4, exFAT, or it may be erased or formatted. Scalable data mapping, management and recovery solutions. Empower all your students and faculty with the unlimited license for the most powerful data recovery software. Improve your data integrity. Make it a corporate benefit, let all your offices and employees access the most efficient data recovery solutions. Protect and recover your data like a pro, become a first-class service provider or forensic expert.
Learn more
OnyX
OnyX is a multifunction utility that you can use to verify the structure of the system files; run miscellaneous maintenance and cleaning tasks; configure parameters in the Finder, Dock, Safari, and some Apple applications; delete caches; remove certain problematic folders and files; rebuild various databases and indexes; and more. OnyX is a reliable application that provides a clean interface to many tasks that would otherwise require complex commands to be typed using a command-line interface. There is a specific version of OnyX for each major version of the operating system. Use the correct version, and don't try to use a version intended for an earlier operating system. Intel-based Mac or Mac with Apple silicon using macOS Monterey 12. PowerPC-based Mac using Mac OS X Jaguar 10.2 with BSD subsystem. OnyX only runs from an administrator account. The old applications are available, but they will be not updated anymore.
Learn more