Displays, sets, or clears volume attributes for the selected volume. Syntax: ATTRIBUTES VOLUME SET | CLEAR HIDDEN | READONLY ...

    Displays, sets, or clears volume attributes for the selected volume.

Syntax:  ATTRIBUTES VOLUME [SET | CLEAR]
            [HIDDEN | READONLY | NODEFAULTDRIVELETTER | SHADOWCOPY] [NOERR]

    SET         Sets the specified attribute (HIDDEN, READONLY, and
                NODEFAULTDRIVELETTER or SHADOWCOPY) for the selected volume.

    CLEAR       Clears the specified attribute (HIDDEN, READONLY,
                NODEFAULTDRIVELETTER or SHADOWCOPY) from the selected volume.

    HIDDEN      Specifies that the volume is hidden.

    READONLY    Specifies that the volume is read-only.

    NODEFAULTDRIVELETTER

                Specifies that the volume does not receive a drive letter by
                default.

    SHADOWCOPY  Specifies that the volume is a shadow copy volume.

    NOERR       For scripting only. When an error is encountered, DiskPart
                continues to process commands as if the error did not occur.
                Without the NOERR parameter, an error causes DiskPart to exit
                with an error code.

    On basic master boot record (MBR) disks, the HIDDEN, READONLY, and
    NODEFAULTDRIVELETTER attributes apply to all volumes on the disk.

    On basic GUID partition table (GPT) disks, and on dynamic MBR and GPT
    disks, the HIDDEN, READONLY, and NODEFAULTDRIVELETTER attributes apply
    only to the selected volume.

Example:

To display the attributes on the selected volume, type:
ATTRIBUTES VOLUME

To set the attribute on the selected volume as read-only, type:
ATTRIBUTES VOLUME SET READONLY

To clear the read-only attribute from the selected volume, type:
ATTRIBUTES VOLUME CLEAR READONLY