How to Install OS X Mountain Lion

Step-by-Step Guide

1. 1

   Step 1: Click the apple button in the upper left corner of your screen.

   Any version of Lion (10.7.x) is able to upgrade to Mountain Lion.
   
   If you currently have Snow Leopard (10.6.x), you need to make sure that you have the latest update installed.
   
   You can do this by clicking the apple icon in the upper left hand corner of your screen, choosing software update, and ensuring that your computer is running on Snow Leopard v10.6.8.
2. 2

   Step 2: Select "About This Mac".

3. 3

   Step 3: Click "More Info."

4. 4

   Step 4: The following Mac models are capable of running Mountain Lion (OS X 10.8): iMac (Mid 2007 or newer) MacBook (Late 2008 Aluminum

5. 5

   Step 5: or Early 2009 or newer) MacBook Pro (Mid/Late 2007 or newer) MacBook Air (Late 2008 or newer) Mac mini (Early 2009 or newer) Mac Pro (Early 2008 or newer) Xserve (Early 2009)

6. 6

   Step 6: From the same "About This Mac" screen

7. 7

   Step 7: check what version of OS X you currently have running on your computer.

Detailed Guide

About the Author