/V On FAT/FAT32: Displays the full path and name of every file on the disk. On NTFS: Displays cleanup messages if any. /R ...

/V              On FAT/FAT32: Displays the full path and name of every file                    on the disk.                    On NTFS: Displays cleanup messages if any.    /R              Locates bad sectors and recovers readable information                    (implies /F).    /L:size         NTFS only:  Changes the log file size to the specified number                    of kilobytes.  If size is not specified, displays current                    size.    /X              Forces the volume to dismount first if necessary.                    All opened handles to the volume would then be invalid                    (implies /F).    /I              NTFS only: Performs a less vigorous check of index entries.    /C              NTFS only: Skips checking of cycles within the folder                    structure.    The /I or /C switch reduces the amount of time required to run Chkdsk by  skipping certain checks of the volume.