I downloaded Easy2Boot and created bootable usb using the auto+defaults option. In the end, in the power shell prompt, it showed a line like this: "add alive grub2 file manager..." which i wasn't sure what it means so i just pressed 'Enter'.
Then i copy openSUSE netinstall .iso to the Linux folder, run 'make this drive contiguous' batch script and tested the usb with 'QEMU_MENU_TEST' script and everything went fine without any errors.
But when i boot the usb it shows a black screen with the message: "Missing MBR-Helper". What this error mean?