CHKDSK

chkdsk
	CHKDSK on boot in Windows XP
Original author(s)	Tim Paterson
Developer(s)	SCP, Microsoft, IBM, DR, Datalight, Novell, Toshiba, PhysTechSoft, ReactOS Contributors
Initial release	1980; 44 years ago
Written in	MS-DOS: x86 assembly language; FreeDOS, ReactOS: C
Operating system	86-DOS, MS-DOS, PC DOS, MSX-DOS, SISNE plus, OS/2, eComStation, ArcaOS, FlexOS, DR-DOS, ROM-DOS, 4690 OS, PTS-DOS, Windows, FreeDOS, ReactOS
Platform	Cross-platform
Type	Command
License	MS-DOS: MIT; FreeDOS, ReactOS: GPLv2
Website	learn.microsoft.com/de-de/windows-server/administration/windows-commands/chkdsk

In computing, CHKDSK (short for "check disk") is a system tool and command in DOS, Digital Research FlexOS,^[1] IBM/Toshiba 4690 OS,^[2] IBM OS/2,^[3] Microsoft Windows and related operating systems. It verifies the file system integrity of a volume and attempts to fix logical file system errors. It is similar to the fsck command in Unix and similar to Microsoft ScanDisk, which co-existed with CHKDSK in Windows 9x and MS-DOS 6.x.

^ "FlexOS User's Guide" (PDF). www.bitsavers.org. 1986. Archived from the original (PDF) on 2018-09-14. Retrieved 2020-09-14.
^ [1]^{[dead link]}
^ "JaTomes Help - OS/2 Commands". Archived from the original on 2019-04-14. Retrieved 2019-07-20.