Mountain Lion Installation Guide (PDF)

$1.99

Mountain Lion (Mac OS X 10.8) is now available, and thanks to the Mac App Store, the process of purchasing, obtaining, and installing Mac OS X is faster and easier than ever. Like Lion, getting this version of the OS no longer involves driving to the nearest Apple Store or retailer, or waiting for the FedEx truck to arrive. But the better shape your Mac is in before Mountain Lion arrives, the better experience you’ll have during and after the upgrade.