How does it come that legacy_boot flag for partition 10 is set? This is normally for BIOS boot. Are you sure you installed Manjaro in UEFI mode? Check by
test -d /sys/firmware/efi && echo efi || echo bios
To start Windoze from grub’s selection menu both OS must be installed in the same mode, i.e. either both in UEFI or both in BIOS mode.