How can I boot from a USB flash drive with Alienware Aurora R7?
I have enabled the USB boot support in the BIOS, but I don't see USB in the boot menu.
USB boot support is enabled in the BIOS:
No USB option in the boot menu:
The USB ports are activated:
Switching from legacy to UEFI boot didn't help:
The USB flash drive seems recognized as its light indicator is flashing when the computer starts. The USB flash drive was formatted to be bootable with rufus and has an image on it. It shows up in Windows Explorer when logged into Microsoft Windows: