A Stuck CD in a MacBook (4 Steps)

Press and release 'Command' and 'Q' to exit out of any currently open applications.
Hold down the 'F12' or 'Eject' key to force the CD out of the optical drive. If the disc remains stuck, proceed to the following step.
Press the MacBook's power button and click 'Restart.'
Hold down the laptop's trackpad while the MacBook restarts to force the CD to eject.
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How to Remove Items From an iMac Dashboard

Click the Dashboard icon--shaped like an automotive gauge--on the bottom of the screen. Alternatively, press the 'F12' key. The screen fades and the Dashboard appears.
Click the plus sign on the bottom-left of the Dashboard. The computer displays the widget bar, which shows all of the widgets currently installed on the computer.
Click the 'X' icon on the widget that you want to remove from the Dashboard. The item disappears.
Click the 'X' icon above the widget bar to return to the Dashboard, or press the 'F12' key to return to the desktop.
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