The program was first introduced in MS-DOS 6.2[1] and succeeded its simpler predecessor, CHKDSK.
It included a more user-friendly interface than CHKDSK, more configuration options,[2][3] and the ability to detect and (if possible) recover from physical errors on the disk.
This replaced and improved upon the limited ability offered by the MS-DOS recover utility.
[4] Unlike CHKDSK, ScanDisk would also repair crosslinked files.
versions of Windows; for the purpose, a newer CHKDSK is provided instead.