If the computer is not connected to the internet via an ethernet connection it will prompt for a wifi network to be chosen. If the original drive was not upgraded to High Sierra, that should be done first so the internet recovery feature on the computer is updated to High Sierra.Īgain, these instructions are intended for new internal SSDs only, with computers that have already had their original drive upgraded to macOS 10.13 High Sierra.ġ) After the new SSD has been installed into the computer, boot to internet recovery by pressing Command-Option-R until a globe is seen. Although Disk Utility should always be tried first, a Mac’s Terminal can be used to format the drive in these cases.
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In the main window, you’ll see a pop-up menu under “Select the volume to become the installer.” Click on the menu and select your drive.Recently, some OWC customers have reported experiencing a situation where their new SSD will not show up in Disk Utility in High Sierra. It’s OK if it’s not formatted as a Mac drive. Then follow these steps to create your bootable macOS High Sierra drive. When the download is done, you can move it over to your Applications folder. It now does.ĭownload Install Disk Creator by clicking on the link above. There’s another app called Diskmaker X that I’ve used before, but during the original writing of this article, it didn’t support High Sierra. It has been updated to support High Sierra. There’s a free app called Install Disk Creator that you can use to make the installation drive. Make a bootable installer drive: The quick way If the installer auto launches, press Command-Q on your keyboard to quit the app. This will download the installer to your Applications folder. Under the High Sierra icon on the left of the banner, click on the Download button. This link should open the App Store app and take you directly to High Sierra. 
Click here to go to the macOS High Sierra section of the App Store. You also won’t find it in the App Store app under Purchased.
If you already installed High Sierra, you won’t find the installer app in your Applications folder.
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