Locate your external hard drive in the list of available drives. Click Next to begin the download and formatting process.
The disk image for Windows 10 or 11, which can be obtained via the Microsoft Download Center . install windows from external hard drive
Before beginning, ensure you have the necessary hardware and software components. Locate your external hard drive in the list
You install Windows normally, choosing the internal drive (or even another external drive if you want a portable Windows). The external installation drive stays untouched unless you deliberately format it. install windows from external hard drive