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Downgrade from Sierra to EI Captain

How to Downgrade macOS Sierra to El Capitan

March 05, 2018 2:34 pm / Posted by Jenefey Aaron to Mac Data Recovery
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One of the many perks of Mac users that Windows users would never imagine of getting is free OS upgrade. Every time Apple releases the latest and greatest macOS, they always come with zero dollar price tag. That’s why the adoption rate of the latest macOS always goes through the roof. Who could resist the best OS in the planet for their Macs for free?

But unfortunately, the latest and greatest macOS doesn’t always mean the best for your machine, especially if your machine is old.

Even though your machine is still compatible with the latest macOS High Sierra, the older your Mac is, the more strain from macOS that it has to endure. That’s why it’s understandable that some people with older Macs might want to downgrade Sierra to El Capitan, or from High Sierra to Sierra.

How do you downgrade your macOS? And what if you don’t have Time Machine backups to help you?

Going Down One Version

The easiest way to downgrade is to use the backup that you have in your Time Machine, and we will discuss it later. But if you don’t have one, you can use the process described below.

The steps that we’re about to discuss will be more or less the same even under different macOS. There would be slight differences in details, but they aren’t essential. So whether you are downgrading from Sierra to El Capitan or from High Sierra to Sierra, or lower, please make a printout or read this discussion on another device so you can do the steps while having the instructions handy.

Step 1: Back Up Your Current macOS

Since downgrading will erase the current macOS entirely, including the files, programs, or documents, it’s wise to back up your important files prior to starting the process. Use external hard drive or cloud-based storage services like Dropbox, OneDrive, or iCloud.

Step 2: Create Bootable Drive of the Previous macOS

If you are downgrading from Sierra to El Capitan, you need a bootable drive of El Capitan handy. But if you’re downgrading from High Sierra, you need Sierra.

Download the installer from AppStore, and use the help from DiskMaker X program to create the bootable disk.

Step 3: Erase the Current macOS

Now is the time to erase the macOS that is currently installed on your computer. If you are downgrading from Sierra to El Capitan, this is the time to erase Sierra. Here are the steps.

After the process is complete, quit Disk Utility from the drop-down menu in the upper left corner of the screen to go back to the OS X Utilities selector.

Step 4: Reinstall the Previous Version of macOS

After wiping out your current macOS installation, you need to reinstall the previous version of macOS. If you are downgrading from Sierra to El Capitan, this is the time to install El Capitan. You need to have your installation USB plugged in.

Just follow the process, and after it finishes, you’ll have your freshly installed Mac ready to roll.

The Easiest Way to Downgrade to Mac OS X EI Captitan

If you have a recent backup of your Mac, you can bypass those rather complicated process to revert to EI Captain.

Steps to restore from backup on Mac

Then the restore process will begin. It could take a while, so you can sit back and relax.

Another Method to Backup and Recover

Apple’s Time Machine is not the only player in the data backup and recover field. Another recommended tool for the job is Data Recovery for Mac. This app is a complete Mac data recovery solution to recover all types of files from Mac's hard drive and other portable devices like USB flash drive, external hard drive, SD card, iPhone, etc. on macOS or mac OS X.

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