In the next window, press the 'Show all disks' option. Press 'Continue' in the following screen.Ĭlick 'Agree' to the accept license agreement. Step 2: Installing macOS High Sierra on the External DriveĪfter you complete the download of the macOS installer, double click the same from the Applications folder to begin the installation procedure. After completion, you will see the following screen. If you choose to, you can also give it a name. In the next window, you can now format the external drive as 'Mac OS Extended' and opt for GUID Partition Map.

Downloading Mac Os X On New Hard Drive Installation Now, from the tabs that appear in right window, choose 'Erase' option. After unmounting, you can select the same drive from the left of the window as shown in the figure below. In the following example, the drive is in Master Boot Record format.

You can find it under the Applications category or search it using Spotlight.Īs utility disk runs in the background, you can check for the format of the external drive. To allow the external drive to function as the startup disk, you need to format it to Mac OS Extended and employ GUID partition map. You can obtain the installer from the App Store by searching for 'macOS' and download it to your Mac hard drive. You will need an external drive with a minimum capacity of 16 GB, and second, you will need the copy of the macOS High Sierra installer. How to Install macOS High Sierra on the External Driveīefore beginning the process, there are a few requisites that you must meet. We will be providing you with the information through which you can install macOS High Sierra on an external drive. Have you ever thought of carrying your Mac OS on an external device and gain access to it at any time? If the reaction is yes, then you have arrived at the right post. Step 1: Formatting the External Drive To allow the external drive to function as the startup disk, you need to format it to Mac OS Extended and employ GUID partition map. OS X Yosemite brings a redesigned user interface to the Mac, as well as many new features that intend to improve productivity and interoperability with iOS devices.

The update to Macs is available now as a free download.

Downloading Mac Os X On New Hard Drive And Operating SystemĪpple has released OS X Yosemite, officially versioned as OS X 10.10.

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