Remove
DiskPart
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Syntax: remove [{letter=d|mount=pat h|[all]}] [dismount] [noerr]
Removes a drive letter or mount point from the volume with focus. If
the all parameter is used, all current drive letters and mount
points are removed. If you do not specify a drive letter or mount
point, then DiskPart removes the first drive letter or mount point
that it encounters.
You can use the remove command to change the drive letter associated with a removable drive. You cannot remove the drive letters on system, boot, or paging volumes. In addition, you cannot remove the drive letter for an OEM partition, any GPT partition with an unrecognized GUID, or any of the special, non-data, GPT partitions such as the EFI system partition.
letter= d
Specifies the drive letter to remove.
mount= path
Specifies the mount point path to remove.
all
Removes all current drive letters and mount points.
dismount
Dismounts the basic volume, when all drive letters and mount points
have been removed from the volume, and takes the basic volume
offline, making it unmountable. If other processes are using the
volume, DiskPart closes any open handles before dismounting the
volume. You can make the volume mountable by assigning it a drive
letter or by creating a mount point path to the volume.
Dismount will fail if used on a volume that has any
remaining drive letters or mount points. For scripting, using
removeall dismount is recommended.
noerr
For scripting only. When an error occurs, specifies that 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.