macOS Big Sur elevates the most advanced desktop operating system in the world to a new level of power and beauty. Experience Mac to the fullest with a refined new design. Enjoy the biggest Safari update ever. Discover new features for Maps and Messages. And get even more transparency around your privacy.

OS X El Capitan Installer. Official OS X El Capitan Installer from the Mac App Store. Un-archive the zip archive and you will get the app Installer. A bootable ISO or bootable USB can be made from this installer. Instructions on how to do that are on the Internet/Youtube. @katemor Its not true that App Store no longer has El Capitan as download. It does not have it as download, if your Apple-ID has never registered a machine with El Capitan. Otherwise they are still there. And your link points to a place, which charges $20 for Apple software. Not quite legal. Oct 2, 2015 4:30 PM in response to AcrobaticWhalesIn response to AcrobaticWhales. Go to System Preferences - Network - Advanced - DNS and just add: 203.122.233.11. I was struggling with a 2 day download time, now it only took 2 hours. That should not affect the speed of the download, as you only need to do the name lookup once.

Check compatibility

macOS Big Sur is compatible with the following computers. If your Mac isn't compatible, you might be able to install an old version of macOS instead.

MacBook introduced in 2015 or later
MacBook Air introduced in 2013 or later
MacBook Pro introduced in late 2013 or later
Mac mini introduced in 2014 or later
iMac introduced in 2014 or later
iMac Pro
Mac Pro introduced in 2013 or later
View the complete list of compatible computers.

If upgrading from macOS Sierra or later, your Mac needs 35.5GB of available storage to upgrade. If upgrading from an earlier release, your Mac needs up to 44.5GB of available storage. To upgrade from OS X Mountain Lion, first upgrade to OS X El Capitan, then upgrade to macOS Big Sur.

Download macOS Big Sur

If you're using macOS Mojave or later, get macOS Big Sur via Software Update: Choose Apple menu  > System Preferences, then click Software Update.

Disk creator el capitan. Or use this link to open the macOS Big Sur page on the App Store: Get macOS Big Sur. Then click the Get button or iCloud download icon.

Install macOS Big Sur

After downloading, the installer opens automatically. Click Continue and follow the onscreen instructions.

Please allow installation to complete without putting your Mac to sleep or closing its lid. During installation, it might restart and show a progress bar or blank screen several times. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.

Stay up to date

Download El Capitan

After installing macOS Big Sur, you will be notified when updates to macOS Big Sur are available. To check for updates, choose Apple menu  > System Preferences, then click Software Update.

You do not need any backup because you have an empty volume to install the OS. Install Mavericks on the startup volumeWhen you are using this method to install the Mavericks download, please keep a backup of your previous OS file and application data. Mavericks dmg download google drive. Also, this method doesn’t need much time to complete the installation process. The main advantage of this method is you can install Mavericks download with exiting startup drive while it is booting.

Downloading El Capitan