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* Update BIOS to latest version 1.2.7, this is discussed in a previous section of this page.* Update BIOS to latest version 1.27, this is discussed in a previous section of this page. Reboot after Flash.* The BIOS menu layout is moronic. There is a couple common settings that trip people up and prevent USB boot. Make sure you check these bios settings:* Under the Menu check the following: Storage -> Storage Options -> Removable Media Boot: Enable Storage -> Storage Options -> SATA Simulation: IDE Boot Order -> USB Device Security -> USB Security -> (enable everything here) If you have the latest BIOS, removable media boot enabled, and USB Security has all the USB ports enabled then simply press F9 at boot and you should see your bootable USB Flash drive in the list. Tested with Linux Mint 19.2 Installation on USB flash drive.