Data Recovery Glossary > ScanDisk

ScanDisk is a disk analysis program used for DOS and Windows to check and repair the file systems and bad clusters that are created when a program aborts. ScanDisk is periodically run, to check the files stored on the hard disk are correctly referenced and accessible. The first ScanDisk tool was released in Microsoft DOS 6.2, it was a purely text-based program called CHKDSK.

ScanDisk most commonly runs when a computer has been halted unexpectedly and the files were not closed correctly and updated before the halt. ScanDisk is responsible for disk maintenance, disk defragmentation and periodical checks to maintain the hard disk in good repair. It automatically corrects any errors it finds.

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