I would suggest you to get the one with a capacity of 16 GB or higher to store the macOS installer file.

A thumb driveĪ thumb drive, aka USB flash drive, is what you would need for this to work. Make sure you’ve got all of them as it will make the entire process much faster. Prerequisitesīefore we get started, here are some prerequisites that you need to take into consideration. You can do it anytime you want – As long as you keep the USB drive bootable with the macOS installer in it, you can reformat and reinstall the macOS again anytime you want. You can do it faster – All it takes to reinstall macOS on a computer is to simply plug in the USB drive and get the mac to boot via external source (your thumb drive). You can do it offline – Installing macOS via USB will allow you to do it offline meaning that you wouldn’t need to wait for the re-downloading of the entire macOS installer, which could take a while depending on your internet speed. Well, if you do want to install macOS on your computer, I would suggest you to do it via USB. Select the drive in Disk Utility and then thePartition Tab.As a mac user, there may come a time when you’d want to reinstall macOS on your computer- say something goes wrong with your machine or you just want to have a fresh start. In Disk Utility, prepare the USB drive to be bootable.Plugin your USB Drive, for this effort I used a 8gb USB drive, and open Disk Utility.You will need this file to create the USB drive. In the Finder window displaying the package contents select the Contents folder, then the SharedSupport folder.Find the downloaded App package in Finder, right or control click it and select “Show Package Contents”.How To Create an OS X Lion USB Installation Drive Below you will find the steps to install OS X Lion via a USB drive. In fact, it is still very easy to create a USB installation disk for OS X Lion. Starting with OS X Lion, the only way to get new software will be to download and install it through the Mac App store.įortunately, it does not appear that Apple has limited our ability to create our own installation media for OS X installations. No longer would you be able to buy the latest and greatest software from Apple on DVDs or other media.

When Apple announced at their World Wide Developers Conference the release of OS X Lion, they shared that they were moving forward with a new way to distribute software to their customers.

How to download macos on usb