Apple uses its App Store to distribute its software, like new Mac operating systems. It’s convenient, but sometimes it can take a while for a download to finish. And if you have multiple Macs, it’s inefficient to download the new OS to each and every Mac. That’s why I like to make a bootable external drive for the sole purpose of installing the Mac operating system.

Download old versions of google chrome for mac. Nov 13, 2016 - So the first step is to create a bootable USB installer for macOS. On windows 10 and you don't need any MacBook or any Apple computer. Also Read: How to Create Bootable USB Installer for macOS Sierra via UniBeast? Mac OS X Lion is the first version of the Mac OS X Operating System that can be downloaded through the App Store application. On itself great, and the price (as usual) is definitely not a reason to not do it ($29.99).

When I need to tend to a bunch of Macs, it’s much faster to use a bootable drive instead of going to each Mac, launching the App Store, searching for the operating system, downloading it (after entering my Apple ID), and then running the installer. You can create a bootable USB flash drive with the macOS Sierra installer that’s now available. The installer software will take up nearly 5GB of storage space. Here’s how to create a bootable macOS Sierra installer drive.

Macworld also has bootable-install-drive instructions for: • • • • • • Download the macOS Sierra installer Launch the App Store app, then look for macOS Sierra in the store. (.) Click on the Download button, and your Mac will download the installer to your Applications folder. If it automatically launches after download, quit the installer. Keep the installer in the Applications folder. If you’ve already upgraded your Mac to Sierra, the installer is removed from the Applications folder. You can download it again if you go to Purchased in the App Store.

Look for macOS Sierra in the list of apps that you’ve bought, and click on the Download button. If it automatically launches after download, quit the installer. Get an external drive You can use a USB flash drive or a hard drive with room for the installer software. I’ve used different drives with success, including a VisionTek 120GB USB 3.0 Pocket Solid State Drive ($83 on ) and an old 8GB Iomega Micro Mini Hard Drive. Don’t worry if the drive isn’t formatted for the Mac. The drive will be reformatted automatically as part of the process. Change the name of your drive to Untitled; you need to do this for the steps below.

The quick and easy way The process detailed below involves the Terminal. If your really don’t want to use Terminal, there are a couple of free apps you can use. • is a straightforward way to create a boot disk. I was able to make a macOS Sierra external USB boot disk in a few minutes, and the installation worked without a hitch. Also works with older versions of OS X. • is a popular app. It also supports older versions of OS X.