Release the Command + R key combination once you see the Apple logo on display.
Restart your Mac, or power it on, while holding down the Command + R key combination.Ģ. All set? Let's jump into the installation process.ġ. You don't have a dongle to connect your USB drive with your (new) Mac.īefore you go ahead with the installation it's worth mentioning here that you will lose your files, therefore make a backup of everything on an external USB drive or iCloud before proceeding.Internet speeds are fast enough to get things done at a quick pace.A USB drive isn't available at all times for everyone.Everything can be done over the air, completely untethered, and all you need to have at hand is a fast working Internet connection.īut why would you want to take the untethered route? There are a lot of reasons behind it, but I'll focus on only three.
But really, you don't have to follow the traditional way in order to do a clean installation of Apple's desktop operating system onto your Mac. When it comes to installing a fresh copy of macOS or OS X, we immediately divert our minds toward a bootable USB drive from which we will take things off.
REINSTALL MACOS HIGH SIERRA INSTALL
Clean Install macOS / OS X Over the Air, Completely Untethered - All You Need is an Internet Connection Here's how you can clean install macOS or OS X on your iMac, MacBook, MacBook Pro without bootable USB drive, external storage medium.
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