


Partition the USB drive with a single basic data partition, formatted as FAT32.Download an ISO 9660 disk image from Microsoft.I’m writing it down so I can easily find the instructions next time! Edit: check the comments for an approach which involves 2 partitions and a little more careful copying, but no special tools. I’m sure there are other ways but this is what I do. Microsoft’s own tool is only available for Windows, of course.

Unlike most Linux distro ISOs, these are true, pure ISO 9660 images-not hybrid images that can also be treated as a DOS/MBR disk image-so they can’t just be written directly to the disk. Every so often I need to install Windows, most recently for my GNOME on WSL experiments, and to do this I need to write the Windows installer ISO to a USB stick.
