How Do I Unregister My Mac?

Click the 'Apple' icon in the upper-left corner of the desktop and click 'System Preferences.'
Click 'MobileMe' in the Internet & Wireless section and click the Sync tab. Click 'Advanced' in the bottom-right corner of the MobileMe window.
Click the name of your computer in the account synchronization window and click 'Unregister' to remove the computer from MobileMe's registration.
Click 'Done' and close the MobileMe window to apply and save the new settings.
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How to Set a Password on a MacBook (6 Steps)

Click the 'Apple' logo in the upper-left corner of the screen.
Click 'System Preferences.'
Click 'Accounts.'
Click 'Change password.'
Enter the old password, if any, and enter the new password into both the 'New password' and 'Verify' boxes.
Enter a password hint, if desired, and click the 'Change Password' button. The changes take effect immediately.
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How to reverse audio in Garageband (6 Steps)

Select the audio region you want to reverse by clicking on it in the Garageband mix window.
Open the edit menu. Choose 'Add To Loop Library.' Enter a unique name for the region so you can easily find it in your loops folder. Click on 'Create.'
Open the folder 'Library> Audio> Apple Loops> User Loops> Single Files'. In that folder is an .aif file of the audio you selected to export for reverse processing. Select that file and choose 'open with> Audacity'. The file will open in the Audacity audio editor window.
Press 'Apple A' to select the entire file (in Audacity). In the Effect menu, choose 'reverse.' Press the space bar to play back the reversed audio file. In the File menu, choose 'Export as .wav file,' and save the file with a new name onto your desktop.
Switch back to the Garageband application and simply drag and drop the reversed file onto the mix window. The file will now appear on a new track, ready for playback.
Align the imported reversed audio file with your original file. Play back the audio and adjust the start point of the reversed audio file as needed to fit into your musical arrangement.
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How to Use Remote Disk on a Macbook

Open “System Preferences” in the Apple menu. Select “Sharing” from the menu. Select “DVD or CD Sharing.”
Go to “Terminal” in the Utilities folder inside of your Applications folder.
Type the two command lines “defaults write com.apple.NetworkBrowser EnableODiskBrowsing -bool true” and “defaults write com.apple.NetworkBrowser ODSSupported -bool true.”
Restart your MacBook. Go to the Apple menu and press “Restart.”
Turn on “DVD or CD Sharing” on the Mac with which your MacBook is using Remote Disk. Turn it on as in Steps 1 to 3, and insert a disc into the optical drive.
Open “Network” in the Finder’s “Go” menu.
Choose the other Mac’s name from the list of available servers and press “Connect.” Type in the password and user name of the Mac whose optical drive you are sharing. Press “Connect.”
Choose the DVD or CD you want to play with Remote Disk. It will appear on your desktop. Click on it to play it.
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How to Change the Default Wi

Launch 'System Preferences' from the Apple menu in the top left corner of the screen.
Select the 'Network' preference pane and click on the 'Advanced' button.
Drag the available networks in the 'Preferred networks' window to their desired order of importance. The network on the top of the list will always be the default Wi-Fi network when available.
Click on 'OK' to exit the screen and click on 'Apply' to save your changes.
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How to Invert Color on a MacBook Pro Monitor (7 Steps)

Click the 'Apple' menu at the top of the screen and then click 'System Preferences.'
Click 'Universal Access' in the 'System Preferences' window.
Click 'Seeing' in the 'Universal Access' window to view a list of visual options.
Click 'White On Black' in the 'Display' section of the window to invert the color of the display.
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How to Connect a MacBook to a TV Monitor

Connect a DVI cable from your Macbook to your TV. If your TV does not have a DVI port, then use a converter cable to convert DVI to S-Video.
Turn on the TV.
Click the Apple logo on the task bar and click 'System Preferences.'
Click 'Displays.' Click 'Detect Displays.'
Click the TV display and then adjust the 'Resolution' to the highest possible setting. If you are connecting to a high-definition TV, then you are likely to get the best resolution. You have now connected your MacBook to a TV.
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How to Switch iTunes Accounts for the iPad

Tap 'Settings' on your home screen. You'll see a navigation pane on the left and a main pane on the right.
Tap 'Store' on the left pane. The main pane will show an 'Apple ID' button with a specific iTunes store account ID.
Tap the 'Apple ID' button and select 'Sign Out.' The button will now read 'Sign In.'
Tap the 'Sign In' button. Select 'Use Existing Apple ID' and then type in the alternative Apple ID and password in the pop-up dialog box.
Tap 'OK.' The 'Apple ID' button will now display a different iTunes Store account ID, indicating that you have successfully switched to another iTunes Store account
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How to Connect FireWire to MacBook Pro

Connect one end of a FireWire cable to the external device’s FireWire port.
Connect the other end of the FireWire cable to the FireWire port on the Apple Thunderbolt to FireWire adapter.
Plug the adapter into the Thunderbolt port on the side of your MacBook Pro.
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How to get iPad Apps

Select 'Create New Account' on the iPad to set up an iTunes Store account if you don't already have one. IPad apps are automatically charged to your Apple iTunes account.
Select 'Apps Store' on the iPad. The Apps Store allows you to review and preview different iPad apps and determine which programs you would like to purchase.
Purchase the iPad app by first tapping the price icon next to the app title and then tapping 'Buy App.' After purchasing the application, the software automatically begins to download on your iPad.
Log in to your Apple iTunes account, if prompted, and select 'OK' next to the pending iPad apps purchase. This is an additional security setting for Apple iTunes accounts.
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How to Use Apple Keynote

Select a theme for your presentation. You can create your presentation from scratch or use one of Apple's themes that are already pre-formatted with fonts and chart layouts.
Insert your text and tables into the pre-formatted slides. Apple boasts that Keynote is 'cinema quality' and has made the themes so easy to use that an entire presentation can be created in minutes.
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How to Delete Apple Subscribed Calendars

Open iCal on your Apple computer. It will be in the Dock or in the Applications folder.
Highlight the subscribed calendar you would like to delete from the list of calendars on the left side of the iCal window.
Press the “Delete” button on your keyboard. A window will open asking if you are sure you want to delete the calendar. You can also choose 'Delete' from the 'Edit' menu in the iCal menu bar
Click “Delete.”
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How to Connect an Apple Mini DVI to HDMI TV (3 Steps)

Locate the HDMI to DVI adapter that came with your Mac Mini when you ordered it from Apple. If you do not have an adapter or you lost it, you can purchase one from the Apple store.
Insert the small end of the adapter into your Mac Mini's DVI port and attach the other end of it to the HDMI cord. Plug the other end of the HDMI cord into your television.
Turn on your television and your Mac Mini to see the Mac display on the television screen. You do not have to worry about sound because the adapter includes audio as well as visual capabilities.
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How to Charge an Apple Laptop (3 Steps)

Plug the A/C adapter into a power outlet.
Connect the charger to the Apple laptop casing. The charging connector will magnetically seat itself when placed near the charging slot.
Wait for the orange light to turn green. The laptop will then be fully charged.
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How to Listen to a Music CD on a Mac (5 Steps)

Press the button under the CD drawer to open it. Remove the CD on the tray, if there is one.
Place your music CD flat on the tray and press the button under the CD drawer to close it.
Click on the Apple menu and select Apple CD Audio Player. If it's not listed, use Find File or Sherlock (press Command-F) to locate it.
See your CD show up on the desktop and in the Apple CD Audio Player window. Operate the controls with your mouse just as you would operate a CD player.
Close the Apple CD Audio Player window with the close box, or switch to another application and continue working while you listen to music.
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The Backlight Won't Stay on in My MacBook (6 Steps)

Locate the 'screen brightness' keys towards the top of the keyboard. These are also labeled as the 'F5' and 'F6' keys respectively. Press each one to see if the screen brightness increases or decreases. Repeat this step while holding down the 'fn' key until the desired brightness is reached. If this does not work, proceed to Step 2.
Click the 'Apple' logo on the top left of the screen and select 'Force Quit' to stop all applications. Select 'Sleep' from the same 'Apple' menu and allow the computer to sleep. Press any key to wake the computer. If the backlight is not back on fully, proceed to Step 3.
Click the 'Apple' logo and select 'Shut down.' Turn the computer back on after the computer has fully shut down. If the problem still persists, proceed to Step 4 to begin a System Management Controller Reset (SMC).
Shut down the computer and unplug the power supply connector. Remove the battery. On the polycarbonate body MacBooks, use a coin to turn the 'battery latch' to the open position and lift the battery out. On the aluminum unibody Macbook, remove the back panel screws (note the location of each screw for replacement) and lift the panel off. Lift the battery out of the case.
Press the 'power button' and hold it down for 5 seconds. You may hear a tone or beep. Release the power button.
Replace the battery and the back panel with screws if you removed those. Reconnect the power supply cable and turn the computer back on. Use the 'brightness' control keys (F5 and F6) to reach the desired brightness.
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How to Use Photoshop for Mac (14 Steps)

Open Adobe Photoshop. Go to Photoshop Menu > Preferences > Display and Cursors. Set your Painting Cursors to 'Brush Size' and your Other Cursors to 'Standard'. This makes it easier to see the exact size of the brush you're using. Click 'OK'.
Familiarize yourself with the tool palette. If you move your cursor over each tool, it will bring up the name of the tool and the letter key to type to quickly access that tool.
Open the photo you'd like to edit by holding down the command key and pressing the 'o' key. On Apple keyboards, this key has an Apple logo on it that may not be present on third-party keyboards. Select your image and then click 'Open'.
Type 'z' to select the Zoom tool. Click and drag the dotted marquee around the area you want to zoom in on. In this case, we're going to remove the unwanted highlights in the dog's eyes.
Type 'w' to select the Wand Tool. Select the area(s) where you want to change the color. To select more than one area, hold down the shift key. Go to the Select menu and choose 'Feather'. Type in a value of 1 where it says 'pixels'.
Type 'i' to select the Eyedropper tool. Click on the area of color you want to match. Hold down the option key and press 'delete' to fill that area. Type 'command-d' to deselect.
You have to clone part of the image around the new fill to match her eyes. Type 's' to select the Clone Stamp Tool. Use the left and right bracket keys to adjust the size of your brush. Hold the option key and click on the area you want to sample. Click and hold to paint the area you wish to clone over.
Type 'command-0 (zero)' to undo the zoom. Type 'c' to select the Crop tool and bring up its options. Type '5' in the Width field and type in '7 in' the Height field. Set the Resolution drop down menu to' Pixels/Inch'. Type '300' in the Resolution field.
Click and drag around the area of the photo you want to keep. If you need to, click in the center of the dotted lines to move the box. The lighter parts of the image will remain, and the darker parts are discarded. Press the return key.This gives you a nice size image for printing and framing.
Go to Image Menu > Adjustments > Brightness and Contrast.
Adjust the sliders until the color is pleasing to your eye. Click 'OK'.
Type 'command-s' to save the photo or go to File menu > Save As... if you want to save it under a different name, or in a different location. Congratulations, you've just professionally edited your first photograph.
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How to Hook Up Your Samsung TV to Your Mac (7 Steps)

Make sure that your television and Mac are both turned off.
Clear a space for the computer to sit beside the television. It should be close enough to the TV for the cords to reach both machines.
Connect the Apple mini-DVI to DVI/HDMI adapter to the VGA cable before connecting either cords to the television or to the Mac.
Plug-in the Apple mini-DVI to DVI/HDMI adapter to the Mac. This is located on the left side of the computer, identified by a rectangle that is flanked by two lines.
Connect the VGA cord to the television, securing the plug by screwing in the two screws. This cord will plug in on the back of the television that is marked 'PC IN.'
Connect the 3.55mm-to-3.55mm audio jack first into the headphone jack on the Mac to get sound. This is on the left side of the computer.
Plug in the other end of the 3.55mm-to-3.55mm audio jack to the television. This goes on the back side of the television, beside the space marked 'PC IN.' The jack is marked 'Audio.'
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How to Access System Administrator on Apple OS X

Locate the Apple menu on your computer screen. Look for an apple-shaped image on the top left of your computer screen.
Click on the Apple menu so that it's menu contents become visible.
Highlight and click on 'Log Out.'
Allow your Apple computer to log your current account out of the system.
Select the Administrator account when prompted to log in again.
Enter the Administrator's password and log into your Apple computer with Administrator capability.
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How to Clean the Screen on a MacBook (5 Steps)

Turn off the computer, unplug the power cord and remove the battery. Whenever using liquid of any kind around a MacBook, or any computer, it is important to have all power to the unit turned off and removed to protect you from shock.
Dampen a soft, lint-free cloth with water. Don't use anything other than water unless it is purchased from an authorized Apple Dealer. It is important that liquid is not sprayed directly onto the screen.
Gently wipe the screen with the dampened cloth. Even using just a cloth and water it is easy to clean off most smudges and fingerprints from the screen.
Wipe the screen down with a soft dry cloth after it has been cleaned to dry any liquid still on the screen and prevent streaking.
Replace the battery, plug the power adapter back in and power up the MacBook. The screen will be crisp and clear. It is a good idea to clean the screen every month to prevent the build up of grime.
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