This is a Bootable USB Drive developed with a full installation of OSX obtained from Apple's Mac App Store. This USB Drive can be utilized to set up and repair OS X 10.11 Compatible Devices. Important: Please make certain to examine exactly what variation of os x your mac can support prior to buying. http://www.everymac.com/systems/by_capability/maximum-macos-supported.html Basic Install instructions. 1. Plug in your bootable USB drive and Restart your Mac while holding the Option secret. Make certain to keep it pressed down! 2. When it restarts, you'll have a few alternatives. Choose your USB Installer. 3. Next, choose the Disk Utility choice. 4. In the window, at the top of the left bar, choose your Mac's Main Drive. 5. Beside the First Aid button at the top, click the Erase button. 6. Now, near the center of the window, choose the Format drop-down list and choose "Mac OS X Extended (Journaled)" as the type. 7. Click Erase (!! WARNING!! this will eliminate your drives data) and allow time for the drive to format. 8. When it's finished, close out Disk Utility and choose "Install OS X" from the menu. 9. Select your primary drive and set up a brand name new OS X on it. Fixing or Issues: If your Mac is older than 2012, you may experience a disk mistake throughout filling or setting up such as: "cannot be confirmed" and "mistake occurred while preparing the installation" or "mistake reading the disk mistake" You will have to examine your clock and set the date/time and time zone properly to obtain by the mistake.
8GB USB Drive
Downloaded From Apple App Store
Check to make sure you can support this version before ordering.