Run the Diskpart command that comes with the system to install and use the diskpart on the USB flash drive. Open the command prompt and enter diskpart, as shown in the following figure (the command in black text): C: \ Windows \ system32> diskpartDISKPART> list disk note: the hard disk and USB flash drive will be listed. You need to check the hard disk and USB flash drive clearly. Then select USB disk DISKPART> select disk 1. Note: if there is only one hard disk, the hard disk is disk 0, and the USB disk is disk 1 DISKPART> clean. Note: clear Data DISKPART> create partition primary of a USB flash drive Note: to create a primary partition, you must DISKPART> select partition 1 Note: select the primary partition DISKPART> active Note: Activate the partition, otherwise, you cannot start DISKPART> format fs = ntfs quick note: to quickly format the partition into the NTFS format File System DISKPART> assign Note: assign a drive letter DISKPART> exit note: exit