February 27, 2017

Intel-Base Macs Startup Key Combinations

Apple startup key Combinations

Apple startup key Combinations

Startup key combinations for Intel-based Macs

Learn about the startup key combinations you can use with Intel-based Macs.

You can use the following startup key combinations with Intel-based Macs.

Keystroke Description
Press C during startup Start up from a bootable CD, DVD, or USB thumb drive (such as OS X install media).
Press D during startup Start up in Apple Hardware Test (AHT).
Press Option-Command-P-R until you hear startup sound a second time. Reset NVRAM
Press Option during startup Start up in Startup Manager, where you can select an OS X volume or network volume to start from.
Press Eject, F12, or hold the mouse or trackpad button Ejects any removable media, such as an optical disc.
Press N during startup Attempt to start up from a compatible network server (NetBoot).
Press T during startup Start up in Target Disk Mode.
Press Shift during startup Start up in Safe Boot mode and temporarily disable login items.
Press Command-V during startup Start up in Verbose mode.
Press Command-S during startup Start up in Single-User mode.
Press Option-N during startup Start from a NetBoot server using the default boot image.
Press Command-R during startup Start from the OS X Recovery System1
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