Notebook won't boot USB drive

Solution 1:

According to the article How to format Medion Akoya S2218 Laptop with Windows 10 using a USB and the EFI Shell, the procedure is as follows:

• Prepare the Windows 10 installation media, using the Windows 10 Installation Media Tool

• Boot with the option of "Internal Shell" (EFI Shell) from the Boot Menu

• From the displayed "Device mapping table", find the removable disk, named for example blk1

• Switch to the disk using the command blk1:

• Switch to the "/efi/boot" directory with the commands:

    cd efi
    cd boot
    dir
  

• Find the .efi file that corresponds to your hardware, probably bootia32.efi, type its name and press Enter

• The normal setup of windows will now start, so follow the prompts.

The above linked article has more details, with screenshots for every step.