This is a tool that has the ability to format your usb devices to fat32 properly so that you can flash vu+ boxes and of course many more without corruption! I have read in the past people have had difficulties flashing receivers via usb so hopefully this software should do the trick!
I have also included (teracopy) which is used to copy files across to your usb devices..of course this particular software is not at all necessary as it is mostly used for transferring much larger files but i prefer to use it myself with windows based computers no matter what i am shifting across!
MK