Update: Before you try all of this, you may want to try using WinToFlash, a utility designed to create a bootable Windows flash drive for Windows XP/Vista/7/Server. If this works for you, you can skip ...
Writing Windows to a USB device in Linux can be a struggle, but it needn't be. Follow this guide to set up Windows installation media in a flash. Many years ago, probably around 2015, I ditched ...