Apple Mac info

Startup key combos for Intel-based Macs

KEY	FUNCTION
C	Start up from a bootable CD, DVD, or USB thumb drive.
D	Start up in Apple Hardware Test/Apple Diagnostics.
Option-Command-P-R until you hear startup sound a second time.	Reset NVRAM
Option	Run the Startup Manager, where you can select an OS X volume or network volume to start from.
Eject, F12, or hold the mouse or trackpad button	Ejects any removable media, such as an optical disc. Hold down the key until the disc ejects. May take a couple minutes.
N	Start up from a network server (a.k.a. NetBoot).
T	Start up in Target Disk Mode.
Shift	Start up in Safe Boot mode and temporarily disable login items.
Command-V	Start up in Verbose mode.
Command-S	Start up in Single-User mode.
Option-N	Start from a NetBoot server using the default boot image.
Command-R	Start from the OS X Recovery System. Only works with Macs that ship with OS X Lion or newer.

KEY	FUNCTION
Command-Option-Esc	activate the Force Quit Applications window
Control-mouse click	right-click
Command-Shift-A	Open the Applications folder
Command-Shift-D	Open the Desktop folder
Command-Shift-H	Open the Home folder
Command-Shift-I	Open the iCloud Drive folder
Command-Shift-U	Open the Utilities folder