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Displays or modifies the checking of disk at boot time.

CHKNTFS volume [...]
CHKNTFS /T[:time]
CHKNTFS /X volume [...]
CHKNTFS /C volume [...]

volume         Specifies the drive letter (followed by a colon)

mount point
or volume name.
/D             Restores the machine to the default behavior; all drives are
checked at boot time and chkdsk is run on those that are
/T:time        Changes the AUTOCHK initiation count down time to the
specified amount of time in seconds.  If time is not
displays the current setting.
/X             Excludes a drive from the default boot-time check.  Excluded
drives are not accumulated between command invocations.
/C             Schedules a drive to be checked at boot time; chkdsk will run
if the drive is dirty.

If no switches are specified
CHKNTFS will display if the specified drive is
dirty or scheduled to be checked on next reboot.