USB Device refuse to show up in the boot menu
16:08 18 Feb 2026

My laptop is ASUS Vivobook S14. System is UEFI, non-CSM. I have 2 USB that I did this test on : 16GB TOSHIBA, 8GB Lexar. The OS that I've been meaning to boot is the newest Tails OS (7.4.2) that's downloaded from the "Windows Installation" window from the official tails.org website itself.

Both my devices has been flashed with :
- Rufus, with the settings of GPT partition, and UEFI (non-CSM)*
- BalenaEtcher
And yes, it's fully cleaned before it was flashed.

I tried both left side and right side port of the laptop. I've disabled secure boot and fast boot. There's no UEFI firmware settings user nor admin password. Both devices works on other machines, so clearly, it's the laptop's issue. It does the same thing when flashed with other OS including arch installer.

I've tried the laptop's boot menu first. The USB devices did not show up at all. I tried the windows startup settings "Use other devices" menu. It also doesn't appear at all. USB works normally in the windows OS, able to be seen in the disk manager, able to be reformatted, flashed, and generally modified as how a normal USB should be.

*Rufus gives no option to pick between ISO or DD mode

What would be the problem causing both USB devices not appearing the slightest?

hardware boot uefi usb-drive asus