OS X El Capitan has arrived and there are a few things you should know: The first, what are the installation requirements? And the second, how can you prepare your Mac for OS X El Capitan?

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Mar 11, 2016 If you ever wondered how to create a bootable OS X Mountain Lion installer under El Capitan, here is the Terminal command to do so: sudo /Applications/Install OS X El Capitan.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install OS X Mountain Lion.app -nointeraction. Download El Capitan: High Sierra: METHOD: How to upgrade from L.

Which Mac models can upgrade to OS X El Capitan?

These ones:

Version, Memory, and Space Requirements for El Capitan

OS X Version: Mountain Lion (10.8), most models. Mavericks (10.9) or higher — all models.

How to check it:

1. Click the Apple icon at the top left of your screen.
2. Select 'About This Mac.'

The number underneath 'OS X' is your version number.
If you're running a version of OS X older than 10.8, look into upgrading your OS X. Also, Apple notes that Metal is only available on 'all Macs since 2012'.

RAM: 4 GB (preferably 8 GB)

In the same menu you have the 'Memory' tab. If you have less than 4 GB RAM, you'll have to look into upgrading your RAM.

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Disk Space: 15 GB to 20 GB of free space on drive

Next to 'Memory,' select 'Storage' tab. In front of the multi-colored bar, you will see the phrase, 'X.XX GB free out of XX.XX GB.' If you don't have at least 15 GB of free space, look into cleaning your Mac with cleanup tool, like CleanMyMac 3.

1 Clean Up Your Mac

A fresh OS X needs a fresh Mac. So to begin with, let's take a look at cleaning up a few things. The easiest (and fastest) way to get yourself a cleaner Mac is by running a scan with CleanMyMac 3. It cleans out:

• System junk
• Unused apps
• Large & old files
• Browser caches
• iTunes broken downloads
• Unnecessary extensions
• Old iOS updates
• User caches & logs
• Copies of Mail attachments

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Besides cleaning, it speeds up your Mac with maintenance scripts and keeps hardware safe with Health Monitors. Get CleanMyMac 3 now and run a scan to see how much junk you can clean up.

If you have OS X version 10.8, download the previous version, CleanMyMac Classic.

2 Back Up Your Mac

And now that your Mac is clean, you should definitely back it up. Why? You never know what will happen when upgrading your operating system. Plus, it's just good practice to back it up every so often, you know, just in case.

1. Go to your Applications folder.
2. Select Time Machine.
3. 'Select Backup Disk…'
   Note: You may need to first choose to 'Set Up Time Machine.'
4. Choose where you'd like to store your backup.
5. An external drive or an Airport Time Capsule is good.

6. Change the switch, located on the left, from 'OFF' to 'ON.'
7. To the right, under the name of the storage device, you'll see 'Oldest backup,' 'Latest backup,' and 'Next backup' — Your backup should begin in 5 minutes. If you don't feel like waiting, click the arrow clock icon next to the Date & Time at the top-right of the menu bar and select 'Back Up Now.'

We hope this guide has helped you. Try these mentioned steps and enjoy your quick Mac with OS X El Capitan on it. In any case - start with CleanMyMac 3 to be ready for El Capitan.

Welcome to Apple Support Communities

Looking at the specs, it looks like your MacBook Air supports OS X El Capitan and will also support macOS Sierra when it is released.

To get OS X El Capitan, you only have to download it from the Mac App Store (it will show an error message if your Mac is not compatible). The installer will show up when the download finishes, so follow its steps. Make a backup of your files on an external drive before upgrading (the easiest way to do one is through Time Machine).

Jun 21, 2016 6:04 AM