Download Portable+macos+high+sierra+10136+dmg+mac+install
After downloading the installer to your Applications folder, use the official Terminal command provided by Apple to format your USB and turn it into a bootable disk.
Lena smiled, ejected the USB, and slipped it into her desk drawer beside a dead iPod and a charger for a phone she no longer owned. download+macos+high+sierra+10136+dmg+mac+install