Startup Keys: More Power to Your MacBook Keyboard

Some keys and keyboard combinations on your MacBook were born for Startup magic — either to get your Apple laptop booted up, help troubleshoot computer problems, or perform other technical tricks within Snow Leopard.

Key	Effect on Your Mac
C	Boots from the CD or DVD that’s loaded in your optical drive (if you have one)
Media Eject	Ejects the CD or DVD in your optical drive (if you have one)
Option	Displays a system boot menu allowing you to choose the operating system
Shift	Prevents your Login Items from running; runs a directory check
T	Starts your laptop in FireWire Target Disk mode (except for the MacBook Air, which has no FireWire port)
Command+V	Show Mac OS X Console messages
Command+S	Starts your Mac in Single User Mode
Command+Option+P+R	Resets Parameter RAM (PRAM)

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