How to create bootable Windows 7 media

I know I don't need any external media to install Windows on a MacBook Pro. I was trying to make a bootable USB in order to install Windows on another laptop that is not a Mac.

Anyway I found a solution for this:

1. Get VirtualBox and install Windows in it
2. Get the Extension pack for your VirtualBox version
3. Install Windows in a VM and after that the VirtualBox Guest Additions
4. Get Rufus and share the folder where the Windows ISO resides on the host
5. Add a filter for the USB (needs to be the one where you want to "flash" the ISO - it will be in a list) and make sure you have USB 2.0 or 3.0 active depending on your hardware
6. Plug in the USB and make sure you eject it from the host (VB and the host cannot access the USB at the same time)
7. Use Rufus to create the bootable USB (make sure you have the MBR partition scheme selected without any of the checkboxes in the "Advanced options" section)

Notes:

1. If you have a USB 3.0 stick that does not work even though you have selected the USB 3.0 controller in VirtualBox, try connecting it to a USB Hub that is 2.0 and set the USB controller to 2.0 in VB settings.

In Mojave, Bootcamp does not work that way anymore. Following the steps in the tutorial I don't get the "Create a Windows 7 or later install disk" option because I get stuck at the first screen. Even if I remove the storage I still don't get the option.

That does not help. As I mentioned, I already tried the "dd" method (like in the link). The second method is not feasible either since I own a 2015 MBP which does not have an optical drive.