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On Windows NT operating systems, CHKDSK can also check the disk surface for bad sectors and mark them (in MS-DOS 6.x and Windows 9x, this is a task done by Microsoft ScanDisk). The Windows Server version of CHKDSK is RAID-aware and can fully recover data in bad sectors of a disk in a RAID-1 or RAID-5 array if other disks in the set are intact. [11]
The CD can also boot from a customized DVD which has almost 4.6 GB of free space for backed-up files. This makes it good for storing all the information that is needed from a hard drive and then formatting it.
TestDisk is a free and open-source data recovery utility that helps users recover lost partitions or repair corrupted filesystems. [1] TestDisk can collect detailed information about a corrupted drive, which can then be sent to a technician for further analysis.
The system utility fsck (file system check) is a tool for checking the consistency of a file system in Unix and Unix-like operating systems, such as Linux, macOS, and FreeBSD. [1] The equivalent programs on MS-DOS and Microsoft Windows are CHKDSK, SFC, and SCANDISK.
The Linux version has no graphical user interface, although extensions created to simplify usage under Linux. [48] [49] In the Linux version of Hard Disk Sentinel, it still is limited like the DOS version. The Linux version can only be used in the Linux Terminal, and it also does not allow you to run any disk tests are repairs.
GParted (acronym of GNOME Partition Editor) is a GTK front-end to GNU Parted and an official GNOME partition-editing application (alongside Disks).GParted is used for creating, deleting, [3] resizing, [4] moving, checking, and copying disk partitions and their file systems.
The Mac version of Disk Drill provides recovery from HFS/HFS+ and FAT disks/partitions (only the paid Pro version can actually recover files, the Free version will only allow Previewing files). In August 2016, Disk Drill 3 announces support of macOS Sierra .
HFS – Hierarchical File System, in use until HFS+ was introduced on Mac OS 8.1. Also known as Mac OS Standard format. Successor to Macintosh File System (MFS) & predecessor to HFS+; not to be confused with IBM's HFS provided with z/OS; HFS+ – Updated version of Apple's HFS, Hierarchical File System, supported on Mac OS 8.1 & above ...