Apple distributes through the App Store. You need an internet connection, and the download will be over 5GB, so it’ll take a few minutes.

For a single Mac, the installation process through the App Store works well, but if you have several Macs, it’s not efficient. That’s why I like to create a bootable installation drive. I can use the drive on each Mac I need to upgrade, saving me from the process of entering an Apple ID and password and then waiting for the download. It’s easy to create an external installation drive. It’s also handy to keep around, just in case you’re in a situation where you rather use the drive than rely on booting in. Here are a couple of different ways you can create a bootable macOS High Sierra installation drive.

After you've enabled DVD or CD Sharing, you can use that computer's optical drive at any time. Insert a disc in the optical drive of the computer that's being shared. The disc should then be available on any Mac that's connected to the same network.

First, let’s cover the items you’ll need and how to get them. Then we’ll go over the two ways to make the drive itself. Macworld also has bootable-install-drive instructions for: • • • • • • • Get an external drive and maybe an adapter Just about any type of USB external drive will work: thumb drive, hard drive, or SSD. The installer software will take up over 5GB. If you want to use a thumb drive, an 8GB drive works perfectly. I used an 8GB Kingston Data Traveler G4 ($9 on ); it’s cheap and it supports USB 3.1, so it’s fast.

I’ve also used a VisionTek 120GB USB 3.0 Pocket Solid State Drive ($95 on ) and older USB thumb drives that support USB 2, which is slower, but works. IDG To connect a USB device with a type-A connector to a MacBook or MacBook Pro with USB-C, you need the USB to USB-C adatper. If you have a 2015 or newer MacBook or a 2016 or newer MacBook Pro, you may need Apple’s. This will allow you to connect a storage device that uses a connector. If you have a USB-C storage device, then you don’t need to get the adapter.

When creating the boot drive, the storage device is reformatted, so there’s no need to format the drive beforehand. Get the macOS High Sierra installer software You’ll find High Sierra in the App Store. It’s not available as an update, so if you run Software Update (Apple menu > About This Mac > Software Update), you won’t find it.

If you launch the App Store app and look for it in the Updates section, you won’t find it. Go to the Featured section of the App Store, and you may see High Sierra appear at the top.

If not, just do a search for “High Sierra.” Click on it to go to the High Sierra page. (You can also.) Apple You can read the information to learn more about High Sierra. When you’re ready to download the software, click the Download button under the icon on the upper left. (If you’ve already downloaded the installer, the button will say Open instead of Download.) Apple Once the download is complete, the installer will launch automatically. But don’t continue with the installation. Instead, press Command-Q on your keyboard to quit the installer. Bash for mac sudo apt-get install windows 10.

The High Sierra installer app will be in your Applications folder, so you can go there and launch it later to upgrade your Mac to the new operating system. If you already installed High Sierra, you won’t find the installer app in your Applications folder. You also won’t find it in the App Store app under Purchased. This link should open the App Store app and take you directly to High Sierra. Under the High Sierra icon on the left of the banner, click on the Download button. This will download the installer to your Applications folder. If the installer auto launches, press Command-Q on your keyboard to quit the app.