Can't update firmwear in my Smart Book Essential

My Smart Book Essential shows up as Drive G.  When I open the SmartWear icon, it tells me that there is a firmwareupgrade available.   When I try to download the new firmware, it doesn’t give me the option to save it into Drive G, since Drive G is totally full.  I didn’t put anything in Drive G, it came that way.  When I unlock it, Drive H opens up.  This is where I save my data.  As I said, Drive G is totally fully, but this is where I have to load the new firmware.  Any idea how to do this?

If the drive is working without problems I would not bother with the firmware update. If it ain’t broke don’t fix it.