If upgrading from macOS Sierra or later, your Mac needs 35.5GB of available storage to upgrade. View the complete list of compatible computers. MacBook Pro introduced in late 2013 or later If your Mac isn't compatible, you might be able to install an old version of macOS instead. MacOS Big Sur is compatible with the following computers. And get even more transparency around your privacy. Discover new features for Maps and Messages. Experience Mac to the fullest with a refined new design. MacOS Big Sur elevates the most advanced desktop operating system in the world to a new level of power and beauty. Once the Mac App Store app finishes downloading OS X El Capitan, an update window will pop up. This is a 8 GB download, so it's probably going to take a while. In your Mac/existing Hackintosh/virtual machine running Mac OS X, open the Mac App Store app and download the latest version of OS X El Capitan. But before your Mac can run El Capitan it has to be updated to OS X 10.6.8. If you are wondering if you can run El Capitan on an older Mac, rejoice as it’s possible too. Note, that to install the Lion or Mountain Lion, your Mac needs to be running Snow Leopard so you can install the newer OS on top of it. A screen shows up with the 10.11 logo stating to install click continue, agree to terms and install OS, I got the option to use disk utility, time machine or recovery or click the install button. The install of El Capitan, at least what I thought was the installation, took a while. Installing macOS or OS X: What to do when ‘the installer payload failed signature check’ or ‘this copy of the install OS X application cannot be verified’. If possible, back up and reformat the target disk before installing. If you can boot normally, delete the' Install OS X El Capitan.app' in you applications folder.
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