You don't happen to have multiple partitions on your Hard drive do you? USB 1 would be the first partition, which may not be the main one. Are there any other options besided USB 1?
If you want to check your harddrives partitions, plug it in to your computer, click the start button, right-click on Computer, choose manage, then wait for the window to come up. Once it comes up, choose disk management in the sidebar, and wait for that to load, then find the letter for your hard drive in the bottom part. If that letter takes up the whole drive (like this) then you only have 1 partition. If there is another "part" to the drive (like this) then you have multiple partitions, and that is probably why wiiflow isn't working.
I checked, and yes, it shows my FAT32 Drive as "Active, primary partition". Doesn't show any other partition next to it.








