1) run disk management
2) delete volume inside USB
3) add simple partition
4) do not format (keep as raw)
5) install and run wbfs manager
6) format USB as wbfs
7) extract to folder wii backup manager
8) run WiiBackupManager_Win64.exe
9) set drive 1 to F: (or usb drive)
10) add game wbfs file
11)...