I was able to speak with someone from Autel regarding this. I had to download the latest Autel Suite from their website. After logging in I, my computer said please insert SD card too. I checked on the "My Computer" area to find my SD card was labeled "G" drive. The update tool was on "F". On the software update screen there is a dropdown menu on the upper left that offered G. I changed that and then it could see the card and started to update.
I should also mention I had an issue with my SD card reader. Mine is not built in to my computer. I use a USB port drive. Mine was quite old and would not work on the newer Micro SD cards. On a guess, I replaced it with a new one ($15 at RS).
I was then able to do the update.
In short, if you cant open the SD card on "My Computer" the update software will not see it either.
Hope this helps