This is a Bootable USB Drive created with a full installation of OSX gotten from Apple's Mac App Store. This USB Drive can be utilized to install and fix OS X 10.8 Compatible Devices. Essential: Please make certain to check exactly what variation of os x your mac can support before buying. 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 restarts, you'll have a few options. Choose your USB Installer. 3. Next, select the Disk Utility choice. 4. In the window, at the top of the left bar, choose your Mac's Main Drive. 5. Next to the First Aid button at the top, click the Erase button. 6. Now, near the center of the window, select the Format drop-down list and choose "Mac OS X Extended (Journaled)" as the type. 7. Click Erase (!! WARNING!! this will erase your drives information) and permit time for the drive to format. 8. When it's completed, close out Disk Utility and choose "Install OS X" from the menu. 9. Select your main drive and install a brand new OS X on it. Repairing or Issues: If your Mac is older than 2012, you might encounter a disk mistake during packing or setting up such as: "can't be validated" and "mistake happened while preparing the installation" or "mistake checking out the disk mistake" You will have to check your clock and set the date/time and time zone correctly to get by the mistake.
8GB USB Drive
Downloaded From Apple App Store
Check to make sure you can support this version before ordering.