FORMAT USB USING COMMAND PROMPT

This can be also be done for:
1. if USB is showing 2 mb instead of 4 or 8 or 16 gb
2. if unable to format normally

Step 1: Run  command prompt as administrator

Step 2: Type diskpart

Step 3: Then type list disk,(which will show all disks available in your pc or laptop)

 Step 4: Identify your USB disk according to its size

           Here,it is disk 1 so I will type select disk 1

NOTE:CHECK THE DISK CAREFULLY BEFORE YOU SELECT

Step 5: type clean

 Step 6: type: create partition primary

Step 7: type: select partition 1

 Step 8: type: active

Step 9: type: format fs*ntfs quick

 Step 10: type, assign

 After this you can type exit and your USB is ready to us again