Apple MD096LL/A, MC812LL/A manual Restoring Your Computer to Its Factory Settings

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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 reinstalling Mac OS X, you can re-download the Apple applications that came with your iMac and other apps you purchased from the Mac App Store. You can restore your other data and applications from a Time Machine or other backup.

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.

1Make sure you’re connected to the Internet by using an Ethernet or Wi-Fi network. (To connect to a Wi-Fi network, follow the instructions on page 52.)

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

3 Select the disk in the list on the left, and then click the Erase tab.

4Select Mac OS Extended (Journaled) from the Format pop-up menu, type a name for the disk, and then click Erase.

5After the disk is erased, choose Disk Utility > Quit Disk Utility.

6In the Mac OS X Utilities pane, select Reinstall Mac OS X and click Continue.

54Chapter 4 Problem, Meet Solution

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Contents Congratulations, you and your iMac Were made for each other Welcome to your iMac OS X Lion Page Contents Looking for Something? Ready, Set Up, Go Ready, Set Up, Go What’s in the Box Setting Up Your iMac Ready, Set Up, Go Turn on your wireless keyboard and mouse Ready, Set Up, Go Configure your iMac To set up your iMacCustomize your desktop and set your preferences To put your iMac to sleep, do one of the following Putting Your iMac to Sleep or Shutting It DownPutting Your iMac to Sleep To wake your iMac from sleep, do one of the followingShutting Down Your iMac Page Life with Your iMac Basic Features of Your iMac Built-in ambient light sensor Ports on Your iMac Ethernet port 10/100/1000Base-T Other Components of Your iMac Power port Features of the Apple Wireless Keyboard and Magic Mouse Apple Wireless Keyboard Using the Apple Wireless Keyboard About the Indicator LightTo pair your wireless keyboard Pairing Your Apple Wireless Keyboard with Your iMacUsing Your Apple Wireless Keyboard To customize your keyboardUsing the Apple Magic Mouse Pairing Your Apple Magic Mouse with Your iMac Using Your Apple Magic MouseTo pair your mouse Using the Apple Remote To use your remoteTo replace the battery Pairing Your Apple RemoteReplacing the Battery To pair your remoteGetting Answers More InformationTo get help from Help Center System Preferences by choosing Apple K System Downloading Mac software Boost Your Memory Boost Your Memory Installing Memory To install memoryRemove the memory access door and set it aside Untuck the tabs Pull the tab Memory modules Raise stand Memory access door Phillips screwdriver To check the memory installed in your iMac Making Sure Your iMac Recognizes the New MemoryProblem, Meet Solution Problem, Meet Solution Problems That Prevent You from Using Your iMac An Ounce of PreventionIf your iMac won’t respond or the pointer won’t move Problem, Meet Solution If your iMac won’t turn on or start up If you have trouble inserting a discIf you have trouble ejecting a disc Repairing, Restoring, or Reinstalling Mac OS X SoftwareIf your date and time settings get lost repeatedly If you have trouble scrolling with your mouseProblem, Meet Solution Repairing a Disk with Disk Utility To connect by using a Wi-Fi networkTo open the Mac OS X Utilities application Restoring Information Using a Time Machine Backup Reinstalling Mac OS X and Apple ApplicationsRestoring Your Computer to Its Factory Settings Checking for a Hardware Problem To use Apple Hardware TestReplacing the Batteries To replace the batteries in the Apple Wireless Keyboard Problems with Your Internet Connection To replace the batteries in the Apple Magic MouseTo use Network Diagnostics Cable Modem, DSL Modem, and LAN Internet ConnectionsTo enter PPPoE settings PPPoE ConnectionsProblems with Wireless Communication Learning More, Service, and Support Keeping Your Software Up to DateOnline Resources AppleCare Service and Support Onscreen HelpSystem Information Locating Your Product Serial Number Country Phone WebsiteLast, but Not Least Important Safety Information Last, but Not Least Power specifications Mouse Class 1 Laser InformationLaser Information for Optical Disc Drives Do Not Make Repairs YourselfImportant Handling Information ÂÂ Maximum operating altitude 10,000 feet 3048 metersCleaning Your iMac Cleaning Your iMac DisplayTo clean your iMac display, do the following Keyboard Cleaning Your MouseUnderstanding Ergonomics MouseDisplay Apple and the Environment ChairRegulatory Compliance Information Bluetooth Europe-EU Declaration of Conformity Korea Warning Statements Japan Vcci Class B Statement Taiwan Battery Statement Chinese Battery Statement Page Looking for Something? Index Looking for Something? Parameter RAM, resetting 49 ports Force an application to quit Page Simultaneously published in the United States and Canada