Change startup disk mac mountain lion

Here are some of the more obvious scenarios that average users might encounter:. Startup Manager makes it ridiculously easy to choose between them at boot time. Your Mac can start up in a number of different ways, including the following methods that our tutorials provide step-by-step instructions for:.

Changing Your Startup Drive

How to pick a startup disk for your Mac at boot time Christian Zibreg on August 24, 3. What is Startup Manager? January PC World. Retrieved August 2, The Wall Street Journal. Retrieved February 24, Apple Inc.

Retrieved March 14, March 15, Retrieved March 17, Apple Support. Retrieved October 29, December 9, Retrieved July 19, December 4, Retrieved August 23, January 19, Retrieved March 30, You'll be tempted to try and run a restore from Time Machine and your certainly free to try it out to see if things will automatically start working and if your APFS volume is intact you may be able to.

How to Install Old OS X on Your Mac

However, I had to do a complete OS X install. You can follow our guide to install a fresh copy of OS X if you need help.

I strongly suggest to create an Install account rather than use your normal account name when preforming a fresh install so that when you come to the restoration process, you avoid any compatibility issues with having similar account names. Once again, you'll need to wait a while while your Mac downloads the installation file from the internet.

Once re-installed, you'll quickly want to upgrade to macOS High Sierra. Unfortunately, you can't.

You need to first upgrade to a minimal macOS version of Searching for older versions of macOS in the App Store yields no results. But if you've downloaded and installed previous versions on your Mac, you can simply select it from your purchased apps list.

How To Make A Bootable Disk Or USB Drive Of OS X Mountain Lion | Cult of Mac

The installer will automatically start and you can follow the prompts or you can look at how to upgrade your macOS install by following our guide. Again the installer will automatically start and you simply follow the prompts or follow our macOS installation guide. Finally, we're ready to restore our backed up data. If you back up using Time Machine, here's what you do. Now you need to wait for the restore to complete which can take many hours depending on the amount of data to restore and how you're transferring that data whether it be via ethernet cable or Wi-Fi.

Erase your Mac and perform a clean install for a fresh start

When complete, log into your restored account and delete the "installer" or "Setup" account if you created one earlier. That's finally it.


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Let us know in the comments! I've been testing AirPods Pro for a week now and have had them firmly set in my ears for 4. Here's what I think of them. If you're no fan of Memoji stickers you might be able to disable them soon if an iOS USB-C is the future, and grabbing an external hard drive is a great way to store backups, music, movies, files, and more!

Change the Mac Startup Drive on Boot

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  • When backups aren't enough In my previous life as a network and system administrator, I learned the hard way that backing up data is only part of the data protection process. Dealing with older hardware Normally, if you have a modern Mac, an OS repair is a straight forward thing where you can reboot by pressing the Command-R keys at boot time and be presented with a series of tools to help you recover your Mac.