Check compatibility
You can upgrade to OS X El Capitan from OS X Snow Leopard or later on any of the following Mac models. Your Mac also needs at least 2GB of memory and 8.8GB of available storage space.
- Download OnyX for Mac - OnyX is a maintenance, optimization, and personalization utility for Mac OS X (PowerPC and Intel).
- Download OnyX 3.4.6 for Mac. Fast downloads of the latest free software!
Jun 15, 2020 for 3.1.9 Until this year I would have raved about Onyx but Onyx has been failing me big time lately / causing problems that didn't exist / not fixing those that did like simple permissions. I am using El Capitan 10.11.6 but Cocktail for ElCap seems to have fixed the problems, along with completely deleting the Onyx corrupted spotlight files. The Latest Update Of Download El Capitan ISO. Download El Capitan ISO has released Safari 11 version; Has included supplemental updates in the security of the device and OS; Safari 10 has the ability to access OS X Download El Capitan and X Yosemite; OS X 10.11.6 El Capitan enhancement of bug fixes and security has been released too.
MacBook introduced in 2009 or later, plus MacBook (13-inch, Aluminum, Late 2008)
MacBook Air introduced in late 2008 or later
MacBook Pro introduced in mid 2007 or later
Mac mini introduced in early 2009 or later
iMac introduced in mid 2007 or later
Mac Pro introduced in early 2008 or later
Xserve models introduced in early 2009
OnyX is a utility with many facets, but its central role is to help you to take care of your Mac, ensuring the best possible performance. Starting off the package is a range of verification tools that can be used to check the status of your hard drives and ensure that the structure of your startup volume is correctly configured. OnyX for Mac, free and safe download. OnyX latest version: Comprehensive maintenance for your Mac.
To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu . If your Mac isn't compatible with OS X El Capitan, the installer will let you know.
Make a backup
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Before installing any upgrade, 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.
Get connected
It takes time to download and install OS X, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.
Download OS X El Capitan
For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of macOS.
If you still need OS X El Capitan, use this link: Download OS X El Capitan. A file named InstallMacOSX.dmg will download to your Mac.
Install the macOS installer
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Double-click the downloaded file to open a window showing its contents. Then double-click the file within, named InstallMacOSX.pkg.
Follow the onscreen instructions, which will guide you through the steps necessary to install.
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Begin installation
After installation of the installer is complete, open the Applications folder on your Mac, then double-click the file named Install OS X El Capitan.
Click Continue and follow the onscreen instructions. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.
Allow installation to complete
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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 both OS X and related updates to your Mac firmware.
Learn more
Onyx For Macbook
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Onyx Os X
- OS X El Capitan won't install on top of a later version of macOS, but you can erase your disk first or install on another disk.
- You can use macOS Recovery to reinstall macOS.