m:\>mkidr data
m:\>diskpart
DISKPART>list disk
DISKPART>list volume
DISKPART>select volume 3
DISKPART>assign mount=m:\data
DISKPART>list volume
DISKPART>remove mount=m:\data
m:\>mkidr data
m:\>diskpart
DISKPART>list disk
DISKPART>list volume
DISKPART>select volume 3
DISKPART>assign mount=m:\data
DISKPART>list volume
DISKPART>remove mount=m:\data