They still have no solution to this problem. Why OWC need Apple to resolve this is a mystery to me. Install macOS High Sierra to your non-startup drive Launch the Installer from the Applications folder and press Continue. _ Cannot install high sierra on apple raidĬannot install high sierra on apple raid Once High Sierra is installed you have control over Siri: Go to Apple menu > System Preferences > Siri to enable (tick) or disable (untick) Siri Once you create a bootable High Sierra USB installer, it’s time to install your macOS.
