Newbie Help can't boot to USB

So I completed the guide and made a usb with mac os high sierra so ready to install mac os on my Hp omen 15 ceo13na. The problem is that in bios when I select the boot from USB option there's an error that . Reboot and select proper boot device. Hiw do I get past thus screen

Hp omen 15 Intel 17 7700hq Nvidia 1060 maxq

submitted by /u/4daStreets
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