Is 4.3 the latest wii update?
The answer is yes
Why did you start 2 threads? And the answer could of been found with a simple search. Your first post should go here. Then you will be greeted with lots of helpful info.
Click here for useful links
Softmod any Wii guide Yes ANY Wii!!!
FAT32 Hard Drives - Formatting, Loading, Ripping, Playing (recommended USB setup)
Ultimate List of Troublesome Games & Solutions
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Try searching with this!!!