Hey, below is the code for terminal, Your drive MUST be named 'macOS' for it to work.
sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/macOS --applicationpath /Applications/Install\ macOS\ Sierra.app
Hackintosh Z170 bios Setup: • Asus Z170 Pro Gaming Hackintosh MacOS Sier...
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Enjoy. If you need any help let us know :)