Clean Install OS X El Capitan Using New Disk Utility

Using New Disk Utility Clean Install OS X El Capitan from USB Boot Disk.

How To Clean Install OS X El Capitan Using Disk Utility.

Clean Install OS X El Capitan 10.11.

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TRANSCRIPT:

In this episode, How To Clean Install OS X El Capitan Using Disk Utility.

We’ve already shown How To Create a USB Boot Disk Using OS X El Capitan from the previous episode https://youtu.be/prLb00eRA0Y.

Before proceeding with the steps involved in doing a clean install of OS X El Capitan, it should be noted that your system hard drive, in most cases, know as your Macintosh HD, will be erased.

Therefore, it’s very important that you’ve done or already have a backup of your important files.

Furthermore, where appropriate, I’ve time-lapse some of the procedures.

Straight to the Demo.

Soooooooo, Let’s Get Started.

Shut down your Mac and insert your El Capitan boot disk in an available socket.


Now, press and hold down the Option key Immediately after you turn on your Mac and hear the startup sound.

Keep holding the Option key till the Startup Manager appears.

Next, Double-click on the Install OS X El Capitan icon or click on the icon and click the up-arrow symbol, where you’ll then see a desktop with an OS X menu bar.

Now, you’ll either see an OS X El Capitan splash screen or an OS X Utilities window as shown.

If you saw the OS X Utilities window, double-click Disk Utility and if you saw the OS X El Capitan Splash screen, click Utilities from the menu bar and select Disk Utility…

From the Disk Utility window, select Macintosh HD, then the Erase Button, shown here.

Make sure the Format is as shown, Mac OS Extended (journaled) and the default Name Macintosh HD (you can change the name if you wish)

Then press the Erase Button here. This will Erase all data and reformat the current Macintosh disk, this takes about 10 seconds.

After Erasing the Macintosh HD, quick Disk Utility.

You’re now back to either the OS X El Capitan splash screen or the OS X Utilities window as before.

It’s now time to Install OS X El Capitan.

Just click the Continue Button from the splash screen or double-click Install OS X from the OS X Utilities window.

After agreeing to the terms, select the Macintosh HD that was just Erased and finally, click on the Continue or the Install Button.

I’ll just time-lapse the remaining process from here.

In my case, the Installation took about 25 minutes, where the Mac will auto boot, and you’ll be presented with the screen to setup your Mac.

After entering the necessary details, you’ll be presented with the El Capitan Desktop.

And that’s all there is to it.

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Thanks and Peace.