diskpart

diskpart: Run a program called diskpart
list disk: Display the current disk list
select disk [number]: Select the disk to be operated. Enter the [number] of the disk output from command # 2. You can judge by capacity. If you make a mistake, the other disc will be formatted.
select partition 1: select partition 1
clean: erases everything on the disk selected above
create partition primary: create partition
format fs = ntfs quick: fast format with NTFS type
active: Enable disk
exit: exit diskpart program