Queries or deletes reparse points, which are NTFS file system objects that have a definable attribute containing user-controlled data, and are used to extend functionality in the input/output (I/O) subsystem. Reparse points are used for directory junction points and volume mount points. They are also used by file system filter drivers to mark certain files as special to that driver.
FSUTIL REPARSEPOINT help
FSUTIL REPARSEPOINT delete drive
FSUTIL REPARSEPOINT query drive
On an NTFS volume, a file or directory can contain a reparse point, which is a collection of user-defined data. The format of this data is understood by the program that stores the data, and a file system filter, which you install to interpret the data and process the file. When an program sets a reparse point, it stores this data, plus a reparse tag, which uniquely identifies the data it is storing. When the file system opens a file with a reparse point, it attempts to find the file system filter associated with the data format identified by the reparse tag. If such a file system filter is found, the filter processes the file as directed by the reparse data. If no such file system filter is found, the file open operation fails.