If this fails, try restore from Recovery mode. Hard Drives Aren't showing when I try to install Sierra. Create a macOS installer and install it on a flash drive. Just make sure Rainlendar2 is not running while you do that. Now select your Drive on which you want to install macOS High Sierra i. Click 'Agree' to the accept license agreement.
No disk to install macos sierra 70 comments Top Rated Comments Drag the dmg file from your Finder window onto the Terminal window and let go.
