/F | Take volume offline to scan it and fix errors on the disk. Equivalent to repair-volume -offlineScanAndFix |
/V | FAT/FAT32: Display full path and name of every file on the disk. NTFS: Displays cleanup messages if any. |
/R | Locate bad sectors and recover readable information (implies /F when /scan not specified). |
/L:size | NTFS only: Change the log file size to the specified number of kilobytes. If size is not specified, displays current size. |
/X | Forcs the volume to dismount first if necessary. All opened handles to the volume would then be invalid (implies /F). |
/I | NTFS only: Perform a less vigorous check of index entries. |
/C | NTFS only: Skip checking of cycles within the folder structure. |
/B | NTFS only: Re-evaluate bad clusters on the volume (implies /R) |
/scan | NTFS only: Run an online scan on the volume without attempting to repair it. Equivalent to repair-volume -scan. |
/forceofflinefix | NTFS only: Bypass all online repair; all defects found are queued for offline repair (i. e. chkdsk /spotfix). Must be used with /scan. |
/perf | NTFS only: (Must be used with "/scan") Use more system resources to complete a scan as fast as possible. This may have a negative performance impact on other tasks running on the system. |
/spotfix | NTFS only: Take the volume briefly offline and then fix the issues logged in the $corrupt file (this process is referred to as spot fixing). Equivalent to repair-volume -spotfix. |
/sdcleanup | Garbage collect unneeded security descriptor data (implies /F). |
/offlinescanandfix | Runs an offline scan and fix on the volume. |
/freeorphanedchains | FAT/FAT32/exFAT only: Free any orphaned cluster chains instead of recovering their contents. |
/markclean | FAT/FAT32/exFAT only: Mark the volume clean if no corruption was detected, even if /F was not specified. |