Installer os x

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You can review our privacy policy for additional information. I Accept Privacy Policy. This method allows you to download Mavericks and Yosemite by logging with your Apple ID — only if you previously downloaded them from the Mac App Store.

If you are signed with an Apple Developer account, you can get access to products that are no longer listed on the App Store. If you desperately need a lower OS X version build, consider creating a new Developer account among other options.

Nevertheless, keep in mind that if you visit developer. Buy a boxed edition of Snow Leopard The email edition comes with a special download code you can use for the Mac App Store. So, here are main steps you should take:. Update to Download El Capitan here. If you have a newer Mac, there is no physical option to install Mac OS versions older than your current Mac model. But as it often happens, workarounds are possible. There is still a chance to download the installation file if you have an access to a Mac or virtual machine running that operating system.

For example, to get an installer for Lion, you may ask a friend who has Lion-operated Mac or, once again, set up a virtual machine running Lion. Then you will need to prepare an external drive to download the installation file using OS X Utilities.

Below is the detailed instruction how to do it. Now the OS should start downloading automatically onto the external drive. After the download is complete, your Mac will prompt you to do a restart, but at this point, you should completely shut it down. Locate InstallESD. The same steps are valid for Mountain Lion and Mavericks.

If your Mac runs macOS Sierra Instruction to downgrade from macOS Sierra. Instruction to downgrade from macOS High Sierra. Instruction to downgrade from macOS Mojave. Instruction to downgrade from macOS Catalina. Before you do it, the best advice is to back your Mac up so your most important files stay intact. In addition to that, it makes sense to clean up your Mac from old system junk files and application leftovers.

Terminal shows the progress as the volume is erased. After the volume is erased, you may see an alert that Terminal would like to access files on a removable volume. Click OK to allow the copy to proceed. When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Monterey. You can now quit Terminal and eject the volume. Use the bootable installer Determine whether you're using a Mac with Apple silicon , then follow the appropriate steps:.

Apple silicon Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing.

Turn on your Mac and continue to hold the power button until you see the startup options window, which shows your bootable volumes. Select the volume containing the bootable installer, then click Continue. When the macOS installer opens, follow the onscreen instructions. Intel processor Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing.

Release the Option key when you see a dark screen showing your bootable volumes. Select the volume containing the bootable installer. Then click the up arrow or press Return.