Apple MacBook (13-inch, Aluminum, Late 2008) - Manual (Page 61)

Chapter 4 Problem, Meet Solution 61
 See AirPort Help (choose Help > Mac Help, and then choose Library > AirPort Help
from the menu bar). Also see the instructions that came with the wireless device for
more information.
Keeping Your Software Up to Date
You can connect to the Internet and automatically download and install the latest free
software versions, drivers, and other enhancements from Apple.
When you are connected to the Internet, Software Update checks to see if any updates
are available for your computer. You can set your MacBook to check for updates
periodically, and then you can download and install updated software.
To check for updated software:
1 Open System Preferences.
2 Click the Software Update icon and follow the onscreen instructions.
 For more information, search for “Software Update” in Mac Help.
 For the latest information about Mac OS X, go to www.apple.com/macosx.
Reinstalling the Software That Came with Your MacBook
You can use the software installation discs that came with your computer to reinstall
Mac OS X and any applications that came with your computer. You can choose “Archive
and Install,” which saves your existing files and settings, or “Erase and Install,” which
erases all your data.