DiskPart on Windows 10

DiskPart - Text-mode command interpreter use to manage objects (disks, partitions, or volumes) by using scripts or direct input from a command prompt.

1. Open Command Prompt. Enter diskpart

2. To display list of disks:
DISKPART> list disk

  Disk ###  Status         Size     Free     Dyn  Gpt
  --------  -------------  -------  -------  ---  ---
  Disk 0    Online          298 GB      0 B
  Disk 1    Online         7800 MB      0 B

3. Selects the specified disk:
DISKPART> select disk 1

  Disk 1 is now the selected disk.

4. To displays partitions of specified disk:
DISKPART> list part

  Partition ###  Type              Size     Offset
  -------------  ----------------  -------  -------
  Partition 1    Primary           7799 MB    32 KB

5. To remove partition/s on specified disk:
DISKPART> clean

   DiskPart succeeded in cleaning the disk.

6. To create 4GB primary partition:
DISKPART> create part primary size=4096

  DiskPart succeeded in creating the specified partition.

7. To mark current partition as active:
DISKPART> active

  DiskPart marked the current partition as active.

8. To quick format current partition as FAT file system:
DISKPART> format fs=fat quick

  100 percent completed

  DiskPart successfully formatted the volume.

9. To assigns a drive letter to current volume:
DISKPART> assign

DiskPart successfully assigned the drive letter or mount point.

URL: https://technet.microsoft.com/en-us/library/bb490893.aspx?f=255&MSPPError=-2147217396