Bootable media has always been finicky over the years and even with things such as UNetbootin, windows is a bit finickier and often needs some specific steps to getting it to boot correctly.

Microsoft has created their own tool (Windows USB/DVD Download Tool) to set this up but I’m concerned that with their new app (Windows Media Creation Tool) this older one will fall into disuse but it is vastly superior to the new one. The tool was originally intended for Windows 7 and that is already no longer supported by microsoft you will have to hope this continues to work in the future.

You will also need to install microsoft .NET Framework v2 and microsoft Image Mastering API v2 and one or both may already be installed on your machine.