Downloading and using different Mac OS installers is very common for troubleshooting purposes, for IT staff and admins, and for tinkerers. The following links point to locations from Apple website where you can download various MacOS system software installers.
New versions of MacOS installers are typically available through the Mac App Store, accessed through a computer that is compatible with the latest Mac system software release. Older versions of Mac OS X installers can often be downloaded as well, but from different sources. 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. Open the disk image, then open the.
It installs an app named Install [ Version Name ]. Open that app from your Applications folder to begin installing the operating system. Check compatibility The version of macOS that came with your Mac is the earliest version it can use. To confirm compatibility before downloading, check the minimum hardware requirements: macOS Big Sur 11 hardware requirements macOS Catalina Your email. Back Think of a strong password. Continue with new account. Your password Show. Back What should we call you?
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