This is a Bootable USB Drive developed with a full setup of OSX gotten from Apple's Mac App Store. This USB Drive can be used to install and fix OS X 10.10 Compatible Devices. Crucial: Please be sure to examine exactly what variation of os x your mac can support before ordering. http://www.everymac.com/systems/by_capability/maximum-macos-supported.html Basic Install guidelines. 1. Plug in your bootable USB drive and Restart your Mac while holding the Option key. Ensure to keep it pushed down! 2. When it reboots, you'll have a few options. Pick your USB Installer. 3. Next, choose the Disk Utility choice. 4. In the window, at the top of the left bar, select 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 select "Mac OS X Extended (Journaled)" as the type. 7. Click Erase (!! WARNING!! this will remove your drives information) and permit time for the drive to format. 8. When it's completed, liquidate Disk Utility and select "Install OS X" from the menu. 9. Select your primary drive and install a brand name brand-new OS X on it. Fixing or Issues: If your Mac is older than 2012, you may encounter a disk mistake throughout filling or setting up such as: "can't be validated" and "mistake took place while preparing the setup" 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.