I have Mac 10.11.6 (OS X El Capitan), but when i try to download the installable for macOS Big Sur I get a message 'It cannot be installed on this computer' even though the page says that it should work on version 10.9 and higher. Click 'Download'. Click continue and it will download the El Capitan installer. When the installer is downloaded it will automatically launch. As it launches Quit the installer at the first question. That will leave you with a 'Install OS X El Capitan' installer app (about 6 GB) in the Applications folder. USB installer and El Capitan Installer in Apple Store. El Capitan Installer is only available in the Mac App Store. So you can only download it from the App Store. By the way, having a USB installer to perform the El Capitan is a good idea. Updates - Make sure your third party Apps are updated before installing Mac OS X El Capitan. You can simply launch App store and click on “Updates” on the tool bar if you want to update the apps you bought from Apple store. For other third party apps, you may need some manual updates from manufacturer websites to complete such updates.
To get the latest features and maintain the security, stability, compatibility, and performance of your Mac, it's important to keep your software up to date. Apple recommends that you always use the latest macOS that is compatible with your Mac.
Learn how to upgrade to macOS Big Sur, the latest version of macOS.
Check compatibility
The new OS X El Capitan features a new Split View, features in Safari, Mail, Notes, Maps, and Photos, and more. Especially if go to the App Store soon after the official release. Hi guys, after a 40 min conversation with Apple Support I have finally managed to install OS X El Capitan on my Macbook Air. I will try to pin down the important points to do this. Apple MMGG2LL/A MacBook Air 13.3-Inch Laptop (1.6 GHz Intel Core i5, 8GB RAM, 256GB SSD, Mac OS X V10.11 El Capitan), Silver (Renewed). Only 4 left in stock - order soon. Eine offizielle Version von OS X 10.11 El Capitan gibt es nach wie vor im Mac App Store. Momentan aber mit einem Fehler.
If a macOS installer can't be used on your Mac, the installer will let you know. For example, it might say that it's too old to be opened on this version of macOS, or that your Mac doesn't have enough free storage space for the installation.
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To confirm compatibility before downloading, check the minimum requirements for macOS Catalina, Mojave, High Sierra, Sierra, El Capitan, or Yosemite. You can also find compatibility information on the product-ID page for MacBook Pro, MacBook Air, MacBook, iMac, Mac mini, or Mac Pro.
Make a backup
Apple Os X El Capitan
Before installing, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
Mac Os X El Capitan App Store Not Working
Apple Store El Capitan Download
Download macOS
It takes time to download and install macOS, so make sure that you're plugged into AC power and have a reliable internet connection.
Safari uses these links to find the old installers in the App Store. After downloading from the App Store, the installer opens automatically.
- macOS Catalina 10.15 can upgrade Mojave, High Sierra, Sierra, El Capitan, Yosemite, Mavericks
- macOS Mojave 10.14 can upgrade High Sierra, Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion
- macOS High Sierra 10.13 can upgrade Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion
Safari downloads the following older installers as a disk image named InstallOS.dmg or InstallMacOSX.dmg. Open the disk image, then open the .pkg installer inside the disk image. It installs an app named Install [Version Name]. Open that app from your Applications folder to begin installing the operating system.
- macOS Sierra 10.12 can upgrade El Capitan, Yosemite, Mavericks, Mountain Lion, or Lion
- OS X El Capitan 10.11 can upgrade Yosemite, Mavericks, Mountain Lion, Lion, or Snow Leopard
- OS X Yosemite 10.10can upgrade Mavericks, Mountain Lion, Lion, or Snow Leopard
Install macOS
Follow the onscreen instructions in the installer. It might be easiest to begin installation in the evening so that it can complete overnight, if needed.
If the installer asks for permission to install a helper tool, enter the administrator name and password that you use to log in to your Mac, then click Add Helper.
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs macOS and related firmware updates.
Learn more
You might also be able to use macOS Recovery to reinstall the macOS you're using now, upgrade to the latest compatible macOS, or install the macOS that came with your Mac.