How to repartition a USB stick on Windows 7 using Diskpart – The Visual Guide
Windows Diskpart will reformat a USB drive and repartition it.
Step1 – Open CMD with admin rights
(it is important that you find which disk is the USB drive – check the space)
select disk x (where x is the USB drive)
create part primary
select part 1
format fs=fat32 label=”SMILE USB”
It’s slow so just leave it run.