Hi,

Just want to express that I am new to Bootmii (I haven't even installed it yet). I currently run a 3.2U Wii console and looking to upgrade it to 4.0U. If I don't like 4.0U and want to use 3.2U again, can I use the NAND recovery utility to restore NAND that had 3.2U. Because I'm thinking of Backing up every version I have of the system Menu from my SD card to my PC. HDD. Is this possible?

Yes