How do I downgrade from Mavericks to High Sierra?
If you’re on High Sierra 10.12. 4 or later, and you want to revert to the version of macOS that shipped with your Mac, then you’re in luck! This is one of the easiest ways to downgrade your Mac: Restart your Mac, while holding down the ‘Shift+Option+Command+R’ keys.
How do I downgrade my Mac OS X version?
How to downgrade to the OS that shipped on your Mac
- Start up your Mac pressing Shift-Option/Alt-Command-R.
- Once you see the macOS Utilities screen choose the Reinstall macOS option.
- Click Continue and follow the on-screen instructions.
- Select your startup disk and click Install.
Can a Mac be downgraded to a newer version?
Once your Mac is running a newer version it won’t allow you to downgrade it that way. But it is still possible to downgrade your Mac. We’ll run through the steps to downgrade your Mac in this article.
Is there a way to upgrade OS X for free?
Since OS-X Mavericks (10.9) Apple have been releasing their OS X upgrades for free. This means if you have any version of OS X newer than 10.9 then you can upgrade it to the latest version for free. There are three ways you can upgrade. Download the Installer from Apple directly to the computer that you want to install the new OS X onto.
How to revert OS X back from Mavericks?
Hold the command option and r keys down on a wired or built in keyboard. Boot the machine and you will see a globe spinning as IR loads. Next select Disk Utility and the disk0.
How can I get an older version of Mac OS X?
You may have to contact App Store billing to get an older online releaes available, or get a refund for an already previously purchased operating system that you go back to download. Also, Apple has written these tips for those with Time Machine, wishing to restore an older versions of Mac OS X from Mavericks: