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1. How to downgrade mac os x yosemite to mavericks install#
2. How to downgrade mac os x yosemite to mavericks download#

You Mac will install the copy of Mavericks that’s on the USB stick. Quit Disk Utility and then click Reinstall OS X. If you’ve booted from a USB stick that you created using Dan’s instructions, choose Disk Utility in the OS X Utilities screen and then erase the volume that currently holds Yosemite. (You needn’t bother with the Partition tab or Partition options, because the volume is already formatted properly if it was running Yosemite.)

If you’ve booted from a Mavericks volume, you can erase your Yosemite volume by launching Disk Utility (/Applications/Utilities), selecting the Yosemite volume on the left side of the resulting window, choosing the Erase tab, and clicking the Erase button. And because you updated to Yosemite, recovery mode now reinstalls Yosemite.īoot from another volume and use Disk Utility to erase your Yosemite volume.

How to downgrade mac os x yosemite to mavericks download#

That means turning to a friend (who hasn’t installed the Yosemite beta), begging to use his or her Mac, and downloading a copy of Mavericks from the Mac App Store using your account.īut even here, there’s a hitch: If your only Mac is a newer Mac that shipped with Mavericks, you can’t download the Mavericks installer from the Mac App Store-your Mac uses OS X Recovery to reinstall OS X. If you’ve ignored our advice in other articles and installed Yosemite on the only volume on your only Mac, you must depend on the generosity of your friends. If you don’t, you’ll need to open the Mac App Store app and download a fresh copy.

Do so now and see if you still have a copy of the Mavericks installer on that Mac (it would be in the main Applications folder). If you’ve heeded our warnings, you haven’t installed the Yosemite beta on the only volume that can boot your Mac, so you can still boot your Mac into Mavericks from another drive or volume. In order to reinstall Mavericks, you’ll need a copy of the Install OS X Mavericks app (a.k.a., the Mavericks installer). If you’ve created or added more than a handful of files, you’re better off backing everything up using Time Machine or some other backup solution. Once you’ve returned to Mavericks, you’ll then copy those files back to your Mac. If you have a small number of documents you can just copy them to an external drive-a hard drive or flash drive, for example-or to a cloud service. If you’ve installed Yosemite and created documents that you’d like to keep, you should back them up, as well. (Although, as we explained in our Yosemite beta FAQ, you really should test Yosemite on a separate Mac, or at least a different hard drive, than your “main” Mac.) This ensures that if something goes wrong, or if you’re simply not satisfied with the Yosemite beta, you can easily return your Mac to the state it was in before embarking on the beta. In the hope that you’re reading this prior to installing the Yosemite (OS X 10.10) beta, you should make a complete backup of your Mac running Mavericks. So, what to do? You essentially start from scratch. Similarly, if you boot your Mac into Recovery Mode (by holding down Command-R at startup) and choose to reinstall OS X, your only option is to reinstall the version of the Mac OS that the Mac is currently running (which, yes, would be Yosemite). You can’t, for example, simply run the Install OS X Mavericks app to install Mavericks over the top of the Yosemite beta-if you try, you’ll be told that you can’t install an older version of OS X over this most recent version. But it’s not as easy as you might believe.

Unlike with iOS-where Apple generally doesn’t let you revert to previous versions of the operating system-you can reinstall a previous version of the Mac OS any time you want. If you’ve leapt aboard the beta without thinking carefully about what this would mean for day-to-day use, and you now wish you had Mavericks (OS X 10.9) back, we’re here to help. The OS X Yosemite public beta gives us some insight into Apple’s next-generation operating system, but it is a beta release-a version of the Mac OS that will have problems and will not be compatible with some of your existing software.