Your Mac is probably running 32bit apps and these will need to be updated to 64bit apps, If you are considering upgrading to Catalina be warned it does not support 32bit apps. Restart, click on the link again, the App Store should say ‘Get' or 'Download'.
Go to the Applications folder locate Install macOS ******.app. If the App Store says ‘Open’ then it is detecting a previous download of the install app
Go to the Download OS section and click on the OS you want to install.īefore upgrading make a full back up of your Mac.Ĭheck that third party apps you use have updates available for the new OS.Ĭheck that your printers/ scanners etc have updated drivers and software available for the new OS.Ĭonnect your mac to your router via cable rather than rely on WiFi.ĭo not use your mac while it is downloadingĪnd do not use any other devices that share the same internet connection.
How to get old versions of macOS – Apple Support Read all instructions thoroughly and take notice of the bold text.įor Mac OS X El Capitan, macOS High Sierra, macOS Mojave or macOS Catalina, I would recommend you upgrade to macOS High Sierra 10.13 first. If you want to install Mojave you can download that via the App Store, the installer app will download directly to your Applications folder as Install macOS Mojave.app and will install version 10.14.6.Īs your mac can upgrade to the newer OS's like macOS Mojave 10.14 and macOS Catalina 10.15, Will allow you to install a full working version of Mac OS X El Capitan and that version will be 10.11.6, this is all you need. If you want El Capitan you will be guided to download the InstallMacOSX.dmg which once downloaded and processed The link below will take you to an Apple article with information how to get the full installers for various OS's. Click on Install and then enter your admin password. Open the downloaded Mac OS X El Capitan software and preview the file in the Applications folder.
If you have tried to install a Security Update for Mojave you need to be running Mojave in the first Click on the download link that shows up, and enter the personal redemption code given to you. OS X 10.11.6 El Capitan enhancement of bug fixes and security has been released too. Safari 10 has the ability to access OS X Download El Capitan and X Yosemite. Has included supplemental updates in the security of the device and OS. Download El Capitan ISO has released Safari 11 version. Installing a newer OS is called an upgrade.Īny updates you downloaded from Apple Support Downloads are not full installers so if you have tried to installĮl Capitan update 10.11.2 you need to be running an earlier version of Mac OS X El Capitan before you can install The Latest Update Of Download El Capitan ISO. Open that app from your Applications folder to start installing the operating system.The App Store Updates page only informs you of updates available for the OS you are running. Safari will download the following older installers as a disk image named InstallOS.dmg or InstallMacOSX.dmg. macOS High Sierra can upgrade Sierra, El Capitan, Yosemite, Mavericks or Mountain Lion.Yosemite, Mavericks and Mountain Lion can all be seen here. macOS Mojave can upgrade High Sierra, Sierra, El Capitan, Yosemite, Mavericks or Mountain Lion If you have access to a Mac running OS X Yosemite or older it is possible to see old versions of Mac OS X in the Mac App Store.macOS Catalina can upgrade Mojave, High Sierra, Sierra, El Capitan, Yosemite or Mavericks.macOS Big Sur can upgrade Catalina, Mojave, High Sierra, Sierra, El Capitan, Yosemite or Mavericks.After you've downloaded the installer from the App Store, the installer will open automatically.
When you finally see the Install OS X window, move on to Step 3 to complete the installation.
The installer will start, although it may take a few moments. If you are running Snow Leopard or Lion and would like to upgrade to High Sierra, you need to install El Capitan first. Start the OS X El Capitan Installation Process In the OS X Utilities window, select Install OS X, and click the Continue button. Safari uses these links to find the old installers in the App Store. This version of OS X El Capitan is for users running OS X Snow Leopard or OS X Lion who would like to upgrade to macOS High Sierra.