If your Mac does not support Internet Recovery, you will be unable to restore from Time Machine. If you haven’t already, you’ve got a pre-2011 credit card. A number of articles will be available online that will demonstrate how to create and use a bootable USB thumb drive. Download and install the macOS High Sierra Installer from the Mac App Store as soon as you have Internet access at your location. If you have an external USB drive, it should be the same size as or slightly larger than your Mac’s drive. Even if you intend to upgrade your computer’s operating system, you should keep the files on a regular basis. Updates to the most recent operating systems are available. How can I do that? How do I install an operating system to an external drive through Time Machine? It’s something I’ve done for quite some time. I have a 2015 Macbook Air 11 and want to upgrade to High Sierra. After your Mac reboots, you’ll be running macOS High Sierra! Click on the Restart button and follow the on-screen instructions to complete the installation process. Once the download is complete, your Mac will prompt you to restart. Click on the Update button to download and install the new software.

If there’s an update for macOS High Sierra, it will show up here. To do this, open the App Store and click on the Updates tab. Once you’ve verified that your Mac can run macOS High Sierra, it’s time to download the new software. If it doesn’t, you’ll need to update your Mac first. Next to “macOS,” it should say “Version 10.13.4” or later. A window will appear with your Mac’s specs. To do this, click on the Apple menu in the upper left-hand corner of your screen and select About This Mac. First, make sure your Mac is compatible with the new operating system. If you’re running an older version of macOS and would like to upgrade to macOS High Sierra, here’s how to do it.

Update from mac os sierra