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. Still need help? Speak to an Apple Expert Arrange a phone call with one of our Apple Experts who specializes in your exact question. Talk to us now or later at your convenience. We'll even call you. Get started NOTE: Callbacks are currently only available for U.S. and Canada phone numbers.