This will allow you to perform a clean install of MacOS Sierra on your Mac. Step 2: Next, you are going to use the installer that downloaded with the OS to make a USB drive. So as soon as MacOS has finished downloading, quit the install. However, once you have downloaded the operating system, it will try to install itself. Step 1: To start the clean install, begin with step 1 above (under the upgrade section). Download MacOS Sierra for a clean Install Just follow the instructions to install the upgrade. Step 2: Once the download is complete, the installer for MacOS Sierra will start. You will see MacOS Sierra listed at the very top if not just search for it. All you have to do to get it is open the Mac App Store and then click the Updates tab. Step 1: MacOS Sierra is available as a free update via the Mac App Store. Now that you have completed the checks and backed up your data, it is time to get started. Unfortunately, not all Macs can support MacOS Sierra, so check to see if your device is in this list:
#How to clean install mac os sierra on new hard drive how to#
You can find out how to get your Mac ready here. Make sure you save all of your important files, images, etc. Getting readyīefore you rush into the installation of this new OS, there are a few things to take care of. Just as you would when upgrading to a new version of iOS, you need to back up your data. However, I am going to show you both methods: how to upgrade and how to complete a clean install. Does it have problems at start-up, crash or issues with shutting down? If you can answer yes to any one of these issues, a clean install is a must for you! If right now you’re wondering why bother with the clean install, consider whether your Mac is running slower than it used to.