diskpart

Diskpart is a utility to configure disks.    Once you know the tricks its relatively easy to use.

The way it works you first select a disk and then all operations are applied to the selected disk.   The command is below (note disk 1 was already selected, indicated by the *)


DISKPART> list disk

  Disk ###  Status         Size     Free     Dyn  Gpt
  --------  -------------  -------  -------  ---  ---
  Disk 0    Online         1862 GB      0 B
* Disk 1    Offline        1862 GB      0 B


DISKPART> select disk=1

Disk 1 is now the selected disk.