When that happens, a common cause is USB 3.x and the solution is simple: use a USB 2 flash drive. Sometimes, however, it breaks at a crucial step: the USB flash drive does not show up in the list of bootable devices. The process outlined above is simple and painless. Problem: USB Flash Drive Does Not Show Up Windows setup starts and takes you through the installation.Select the USB flash drive from the list.During the BIOS initialization phase, press ESC/F12 to bring up the list of boot devices (here is a handy list of hotkeys covering most vendors).Connect the USB flash drive to the PC or laptop.Create a bootable Windows Setup USB flash drive, either with Windows 10 Media Creation Tool or with Rufus.Clean Install of Windows: How the Process Should Work Getting rid of all the unwanted modifications is a powerful motivation to install Windows from scratch, specifically on new devices. Instead, they make any number of changes to the preinstalled OS that may introduce bloat and security issues. PC or Laptop vendors do not ship “clean” Windows installations on their devices.

Penguin USB by Lucius Kwok under CC Why Install Windows From Scratch?

Usb shows up as 2 drives