Run the tool and select "Create installation media for another PC." Choose Windows 10 Pro , and select Both for architecture (this gives you the 32-bit and 64-bit installers on one USB).
: If you are affiliated with an educational institution or a non-profit organization, you might be eligible for free or discounted versions through Microsoft’s programs like Microsoft Dreamspark or Imagine. windows 10 pro 32 64 bits repack link