How to Delete a Volume

You can delete a volume from either the Disk Management snap-in or the command line.

Deleting a volume permanently erases the data stored on the volume.

From the Disk Management snap-in, simply right-click the volume and then click Delete Volume.
From the DiskPart command-line tool at an elevated command prompt, select the volume and then use the delete volume command, as the following code demonstrates.

DiskPart

  Microsoft DiskPart version 6.1.7100
  Copyright (C) 1999-2008 Microsoft Corporation.
  On computer: WIN7

DISKPART> list volume

DISKPART> select volume 0

  Volume 0 is the selected volume.

DISKPART> delete volume

  DiskPart successfully deleted the volume.