Microsoft ScanDisk (also called ScanDisk) is a diagnostic utility program included in MS-DOS and Windows 9x. It checks and repairs file systems errors on a disk drive, while the system starts.
Overview
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.[5]
However, ScanDisk cannot check NTFS disk drives, and therefore it is unavailable for computers that may be running NT based (including Windows 2000, Windows XP, etc.) versions of Windows; for the purpose, a newer CHKDSK is provided instead.
On Unix-like systems, there are tools like fsck_msdosfs[8] and dosfsck to do the same task.
^"How to Fix Cross-linked Files (Revision: 2.0)". Microsoft Support. Microsoft Corporation. 10 May 2003. Retrieved 24 December 2011. If you are running MS-DOS 6.2 or later, run ScanDisk, instead of [~snip~]
Stinson, Craig (1998). "ch. 16: Optimizing, Maintaining, and Troubleshooting". Running Microsoft Windows 98. Redmond, Washington: Microsoft Press. ISBN1-57231-681-0. Retrieved 24 December 2011.
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