manage-bde {-WipeFreeSpace|-w} Volume -Cancel {-ComputerName|-cn} ComputerName {-?|/?} {-Help|-h} Description: Wipes the ...

manage-bde {-WipeFreeSpace|-w} Volume
                  [-Cancel]
                  [{-ComputerName|-cn} ComputerName]
                  [{-?|/?}] [{-Help|-h}]
Description:
    Wipes the free space on the volume removing any data fragments that may
    have existed in the space. If used with a volume that was encrypted
    using the data only option provides the same level of protection as if
    the volume had been encrypted with the full encryption option.

Parameter List:
    Volume      A drive letter followed by a colon, a volume GUID path or
                a mounted volume. Example: "C:",
                \\?\Volume{26a21bda-a627-11d7-9931-806e6f6e6963}\ or
                "C:\MountVolume"
    -Cancel     Cancels wipe of free space.
    -ComputerName or -cn
                Runs on another computer. Examples: "ComputerX", "127.0.0.1"
    -? or /?    Displays brief help. Example: "-ParameterSet -?"
    -Help or -h Displays complete help. Example: "-ParameterSet -h"

Examples:
    manage-bde -w C:
    manage-bde -w -Cancel C: