Or you can format the USB as FAT32, extract the Windows ISO to the USB drive, install syslinux or grub-bios to the USB drive and chainload /bootmgr (Windows bootloader for BIOS) from the USB as follows:
Or you can format the USB as FAT32, extract the Windows ISO to the USB drive, install syslinux or grub-bios to the USB drive and chainload /bootmgr (Windows bootloader for BIOS) from the USB as follows: