Apple Z0MF manual Reinstalling Mac OS X and Apple Applications

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Reinstalling Mac OS X and Apple Applications

Under some circumstances, you may need to reinstall Mac OS X and Apple applications. You can reinstall while keeping your files and user settings intact.

1Make sure your MacBook Air is connected to the Internet by using an Ethernet or Wi-Fi network. (To connect to a Wi-Fi network, follow the instructions on page 43.)

2In the Mac OS X Utilities pane, select Reinstall Mac OS X and click Continue.

3In the pane where you’re asked to select a disk, select your current Mac OS X disk (in most cases, it is the only one available).

4To select or deselect optional software, click Customize.

5 Click Install.

You can install Mac OS X without erasing the disk, which saves your existing files and settings, or you can erase the disk first, which erases all your data and leaves the computer ready for you to reinstall Mac OS X and Apple applications.

After installing Mac OS X, you can go to the Mac App Store and re-download your Apple applications.

Important:  Apple recommends that you back up the data on the disk before restoring software. Apple is not responsible for any lost data.

Restoring Your Computer to Its Factory Settings

When you restore your computer to its factory settings, everything on your computer (your user accounts, network settings, and all of your files and folders) is deleted. Before you restore, back up any files you want to keep by copying them to another disk. Write down your network settings from Network preferences to make it easier to get connected again after reinstalling Mac OS X.

Chapter 3   Problem, Meet Solution

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Contents Page Welcome to your MacBook Air OS X Lion Page Contents Looking for Something? Ready, Set Up, Go Welcome What’s in the Box Setting Up Your MacBook AirAC plug MagSafe connector ¯MagSafe power port AC power cord Press the power button briefly to turn on your MacBook Air To set up your MacBook Air Configure your MacBook Air with Setup AssistantReady, Set Up, Go Customize the Mac OS X desktop and set preferences Getting Additional Information onto Your MacBook Air Setting Up DVD or CD SharingMacBook Air Sharing Discs with DVD or CD Sharing To enable DVD or CD Sharing, if your other computer is a PCPutting Your MacBook Air to Sleep Putting Your MacBook Air to Sleep or Shutting It DownTo use a shared DVD or CD To put your MacBook Air to sleep, do one of the followingShutting Down Your MacBook Air To wake your MacBook AirTo shut down your MacBook Air, do one of the following Page Life with Your MacBook Air Basic Features of Your MacBook Air Built-in stereo speakers Keyboard Features of Your MacBook Air Brightness keys F1, F2 Ports on Your MacBook Air ¯ MagSafe power port Using the Multi-Touch Trackpad Secondary-click zone Life with Your MacBook Air Life with Your MacBook Air Charging the Battery Running Your MacBook Air on Battery PowerTo get help from Help Center Getting AnswersSee More InformationTo learn about See Page Problem, Meet Solution An Ounce of Prevention To force an application to quit Problems That Prevent You from Using Your MacBook AirIf your MacBook Air doesn’t turn on or start up Try restarting your MacBook Air Repairing, Restoring, or Reinstalling Mac OS X Software To open the Mac OS X Utilities application To connect by using a Wi-Fi networkRestoring Information Using a Time Machine Backup Repairing a Disk with Disk UtilityRestoring Your Computer to Its Factory Settings Reinstalling Mac OS X and Apple ApplicationsTo use Apple Hardware Test Checking for a Hardware ProblemTo use Network Diagnostics Problems with Your Internet ConnectionProblems with Wi-Fi Communication Keeping Your Software Up to Date To check for updated softwareAppleCare Service and Support Learning More, Service, and SupportOnline Resources Onscreen Help System InformationCountry Phone Website Locating Your Product Serial Number Last, but Not Least Important Safety Information Last, but Not Least AC plug MagSafe power specifications Last, but Not Least Important Handling Information Last, but Not Least Keyboard and Trackpad Understanding ErgonomicsChair External MouseBuilt-In Display Apple and the EnvironmentRegulatory Compliance Information Bluetooth Europe-EU Declaration of Conformity Japan Vcci Class B Statement Russia External USB Modem Information 020-5563-A Looking for Something? Index Looking for Something? Updating  Simultaneously published in the United States and Canada Page