Startup key combinations for Intel-based Macs

Startup key combinations for Intel-based Macs
Last Modified: February 24, 2010
Old Article: 303124
Article: HT1533
Summary
Learn about the startup key combinations you can use with Intel-based Macs.
Products Affected
Mac Pro, iMac (20-inch, Mid 2007), iMac (24-inch Mid 2007), iMac (Mid 2006 17-inch), iMac (Early 2006 20inch), iMac (Early 2006 17-inch), iMac (24-inch, Late 2006), MacBook Pro, MacBook, Mac mini, iMac (20-inch Late
2006), iMac (17-inch, Late 2006 CD), iMac (17-inch, Late 2006), MacBook Air, Mac Pro (Early 2008)
Keystroke
Press C during startup
Press D during startup
Description
Start up from a bootable CD or DVD, such as the Mac OS X Install disc
that came with the computer.
Start up in Apple Hardware Test (AHT), if the Install DVD 1 is in the
computer.
Press OptionCommand-P-R until
Reset NVRAM
you hear two beeps.
Press Option during
startup
Starts into Startup Manager, where you can select a Mac OS X volume to
start from. Note: Press N to make the the first bootable Network volume
appear as well.
Press Eject, F12, or hold
the mouse (/trackpad)
Ejects any removable media, such as an optical disc.
button
Press N during startup
Attempt to start up from a compatible network server (NetBoot).
Press T during startup
Start up in FireWire Target Disk mode.
Press Shift during
startup
Press Command-V
during startup
Press Command-S
during startup
Press Option-N during
startup
Start up in Safe Boot mode and temporarily disable login items.
Start up in Verbose mode.
Start up in Single-User mode.
Start from a NetBoot server using the default boot image.
Additional Information
For the best experience with startup keys, press the keys immediately after you hear the startup tone.
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