Apple MB427Z-A Installation Guide - Page 7

Step 4: Select how you want to install Mac OS X Click the Options button to select "Archive and Install" or "Erase and Install." One of the following screens appears: This is selected if Mac OS X isn't installed. This is selected if Mac OS X is already installed on the volume. Select how you want to install Mac OS X, and then click OK. Click Continue when you're ready to proceed to the next pane. Install Mac OS X This option appears if you don't have Mac OS X installed on your computer or you have an early version of Mac OS X (v10.2.8) that can't be upgraded. Select this option to install Leopard on your computer. Archive and Install Select this option if you want to install a fresh system on your computer. "Archive and Install" moves your existing Mac OS X system files to a folder named Previous System, and then installs a new copy of Mac OS X on the selected volume. Mac OS X-installed applications, such as Address Book and Safari, are archived, and new versions are installed in the Applications folder. Unless you choose "Preserve Users and Network Settings," user accounts and their home folders are also archived in the Previous System folder. 7