It's a virtual copy of a CD or DVD, with the same file ... your PC's boot order to boot from the selected drive. This will launch the Windows Installation Wizard, and you can then install Windows.

In Windows operating systems, drive letters play a fundamental role in identifying storage devices, such as hard disks, solid ...

Plug in your Windows 10 installation USB drive or insert the Windows 10 disk. Change the boot order in the BIOS to boot from ...