CHKDSK checks a drive for errors, and optionally attempt to fix them.
It also gives a detailed analysis of the disk's size and structure.
Chkdsk [volume] [/f] [/d files] [/r] [/s] [/v] [/?]
/f attempt to fix any errors found.
/d print out the indicated files and show the fragmentation factor.
/r scan the data area and try to recover unreadable data.
/s only show drive summary.
/v show file name as it is being checked.
/? Shows the help.
volume The disk, drive or partition that you wish to check,
for instance: chkdsk a: Would check the A drive. If no
volume is given, the current drive is assumed.
/f Tells chkdsk to attempt to fix any errors.
/d files This will list the level of fragmentation for
each file. If many files are very fragmented then
disk operation can be slow. You can defragment your
disk drive with defrag.
This option also lists the file attributes for each
file, see attrib for more information about file
/r Scans for and attempts to recover data. This may need
a long time!
/s Tells chkdsk not to check the drive, but only to
display the drive analysis.
/v This lists the files as they are being checked.
Note that this can slow things down, especially if
there are many files.
CHKDSK has the following EXITCODES (ERRORLEVEL):
0 drive okay
chkdsk c: /f
Please read this command's lsm file also.
You will find the updated version (internet) here and
the version described in this manual page here.
The lsm file contains information about the name of the programmer,
the download site, and some other command related information.
Copyright © 2003-2004 Robert Platt, updated 2011 by W. Spiegl.
This file is derived from the FreeDOS Spec Command HOWTO.
See the file H2Cpying for copying conditions.