Navigate to the folder named or "4: External HDD" . Drag and drop your Pikmin 4 NSP/XCI files into that folder.
Your sigpatches are likely outdated. Update your patches.ini or kip files.
For standard users, the most secure method is purchasing and downloading directly from the Nintendo eShop. Open the eShop from your Switch Home Menu. Search for .
Now go lead your Pikmin, command Oatchi, and rescue Captain Olimar. Happy gaming!