How to Downgrade macOS High Sierra to macOS Sierra

Can no longer bear with the bugs or issues of High Sierra? Head into this straightforward guide to go back to macOS Sierra from macOS High Sierra.

Has your Mac run into several issues like random freezing ever since you installed High Sierra? Needless to worry about it. As we all know that the macOS is still in beta and requires some more polish to run smoothly, you must be battle ready to face some unexpected bugs. But just in case you no longer want to put with the random tantrums of your Mac, downgrade macOS High Sierra 10.13 to macOS Sierra 10.12.

You can easily go back to the previous macOS version. But before heading over to the guide, make sure to back up your Mac using Time Machine. (Apple Menu → System Preferences → Time Machine.) Once you have downgraded the macOS, you will be able to restore the backup. Ready to dive ahead with the process? Here you go!

How to Downgrade macOS High Sierra to macOS Sierra

Keep In Mind Before Moving Ahead:

  • Ensure that you have the backup of your Mac when it was running macOS Sierra.
  • If your computer shipped with macOS Sierra preinstalled, you can downgrade with ease.
  • However, you will have to create bootable macOS Sierra Installer, if your computer wasn’t running Sierra from the beginning. For more help, check out Apple Support page.
  • Below method will wipe out all the existing data of your Mac. So, make sure you have already backed up your device.

Step #1. Ensure that your Mac is connected to the Internet. Click on Apple icon at the top-left corner of the screen on your Mac and select Restart.

While the Mac restarts, hold down Command+R to put your computer into Recovery Mode.

Step #2. From the OS X Utilities, click Disk Utility.

Step #3. Click Continue. Then, you have to select Startup Disk.

Step #4. Next, you need to hit the Erase tab that is located at the top of the window.

Step #5. Next, you have to enter the name of the file that you want to kill. For example, macOS High Sierra.

Step #6. You need to choose Mac OS Extended (Journaled) format if your computer is using HFS+.

Note: You will have to pick AFPS if your computer is using AFPS format. Besides, you need to choose GUID Partition Map in case scheme is in the offing.

Step #7. Next up, click on Erase.

Once the data has been wiped out, you need to return to the OS X Utilities Selector. To do so, you need to quit Disk Utility from the drop-down menu from the top-left corner of the screen.

Now, it’s time to start reinstalling macOS Sierra on your Mac.

Reinstall macOS Sierra Your Mac

I’ve said it right at the top and would like to repeat it again. If your Mac had been running Sierra from the beginning, now you just need to restart it to go back to the previous operating system. (Else, the restart will take your Mac to the OS that can preinstalled.)

  • To get it done, click on Apple menu → select Restart.
  • Even as your computer is restarting, hold down the Shift + Option + Command + R. That’s done! Your Mac will now reinstall macOS Sierra.

Just in case, the computer didn’t come with Sierra, follow the steps mentioned below to go back. Just ensure you have the macOS Sierra Installer ready.

Step #1. From OS X Utilities, click on Reinstall OS X and then select Continue on the macOS Sierra installer.

Next, you will have to agree to the terms & conditions and reinstall it. Your Mac will restart when the process is completed.

Now, allow your Mac to restore from the backup with complete peace of mind. It’s going to take some time. So wait a bit patiently.

Restore Data from Time Machine on Mac

Step #1. Restart your Mac. While it’s rebooting, hold down Command+R and then click Restore from Time Machine Backup from the OS X Utilities menu.

Step #2. Click Continue.

Step #3. Click Continue again after reading “Restore Your System” page. Then, click Time Machine Backup and select Continue.

Step #4. Finally, you have to select the most recent backup and click Continue.

Wrap up:

So, would you like to share your feedback about High Sierra? What exactly was the reason behind your downgrading to the previous version? Is it because of the bugs or you simply didn’t like it at all?

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