Some USB keys have been found to have various partition table set-ups that the USB software will not work with. You can use Windows Diskpart to re-format a USB key and re-partition it.
- Open a Command Window (cmd)
- Enter diskpart
-Enter list disk (it is important you KNOW which disk is the USB key you are formatting)
-Enter select disk x where x is your USB key
-Enter clean
-Enter create part primary
-Enter select part 1
-Enter active
-Enter format fs=fat32 label="New Label"
label is optional
