How to Downgrade macOS Mojave to macOS High Sierra

No longer tolerate the pile of bugs? You have the option to go back from macOS Mojave to macOS High Sierra on your on your Mac to prevent annoying bugs from damaging your workflow. Refer this complete guide to erase Mojave, reinstall High Sierra and then restore from the latest backup!

Charmed by a plethora of all new features, I downloaded macOS Mojave beta on my Mac as soon as it went live. Hardly had I taken a peek at the new add-ons, all hell seemed to break loose! From rapid battery drain to the frequent freezing of apps, my notebook appeared to be altogether plagued by too many bugs. Eventually, I decided to downgrade from macOS Mojave to macOS High Sierra.

Stung by stubborn issues, I’m going to wait for some more refinements before going for the newest macOS version. Have you also run into the same problem and can’t bear with the bugs anymore? Head over to go back to High Sierra!

How to Downgrade macOS Mojave to macOS High Sierra

Things to Keep In Mind:

  • Ensure that you have Time Machine backup of your Mac when you were using macOS High Sierra.
  • If your Mac came with High Sierra installed, going back will be a tad easier.
  • Just in case your Mac didn’t ship with High Sierra preinstalled, you need to first create a bootable macOS Installer. To get it done, head over to this Apple Support page.
  • Before going back to the previous version, you will have to erase your Mac. So, make sure you have fully backed up your device to remain on the safer side in case of any mishap.

Proceed with the following steps only after you have taken care of the above points:

Step #1. Click on the Apple icon at the top left corner of the screen → choose Restart in the menu.

Then, you have to press and hold Command+R. Be sure to hold the keys until your Mac reboots.

Step #2. Your Mac will now enter Recovery Mode. Next, click on Disk Utility in the OS X Utilities and hit Continue.

Step #3. Click on the Startup Disk and select the Erase tab at the top of the window.

Step #4. Next, you have to enter a name for the file you want to eliminate. It could be something like macOS or macOS High High Sierra.

You need to choose Mac OS Extended (Journaled) from the format list if your computer is using HFS+. You will have to choose APFS if it’s using APFS.

You have to choose GUID Partition Map, if there is Scheme. In the end, click Erase.

Step #5. After your computer has been erased, quit Disk Utility from the drop-down menu at the top left corner of the screen to return to the OS X Utilities selector.

Now that you have successfully removed the Mojave from your Mac, reinstall High Sierra.

Reinstall macOS High Sierra

As mentioned above, if your Mac had been running macOS High Sierra from the beginning, going back would be a lot easier for you.

To do so, click on Apple menu → and choose Restart.

While your Mac is rebooting, you need to hold down Shift + Option + Command + R.

Now, your computer will reinstall macOS High Sierra.

However, if your computer didn’t come with High Sierra, follow the steps mentioned below to downgrade.

Step #1. Click on Apple icon at the top left corner → Restart in the menu.

Then, you need to press and hold the Option key. Next, you would be directed to choose the startup disk. Pick your bootable drive with macOS High Sierra from the list of startup disk options. The installation will start now.

Step #2. Now, Click Continue in the macOS High Sierra installation window.

Next, you need to agree to the terms and conditions. Then, the OS will reboot on your Mac.

Once you installed High Sierra on your computer, you can restore it from the most recent backup.

Keep reading…

Restore From the Latest Backup

Step #1. First off, click on Apple icon and choose Restart in the menu.

Step #2. Now, you need to press and hold Command+R and make sure to hold the keys until your Mac reboots.

Then, you have to choose Restore from Time Machine Backup in the OS X Utilities and hit Continue.

Step #3. Choose the Backup source and click on Continue.

Then, you need to choose the latest macOS High Sierra backup.

Step #4. Finally, click on Continue.

Now, wait for some time until your Mac has restored from the latest backup.

That’s all folks!

Wrapping up

The prime reason why I stopped using the newest macOS version is that it’s slightly more buggy now. What was your main reason for going back? Do share your feedback in the comments.

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