I installed Windows 7 (Boot Camp) on a MacBook Air (July 2011 model, OS X Lion), and now it only boots into Windows. How do I boot it into Mac OS again?
I booted into Mac OS by holding down Alt/option key while the computer was booting up.
I also read that holding down C key works, but it did not work for me.
Here is the info from Apple:
Key or key combination What it does Option Display all bootable volumes (Startup Manager) Shift Perform Safe Boot (start up in Safe Mode) C Start from a bootable disc (DVD, CD) T Start in FireWire target disk mode N Start from NetBoot server X Force Mac OS X startup (if non-Mac OS X startup volumes are present) Command-V Start in Verbose Mode Command-S Start in Single User Mode
Hold down the Alt/Option key at startup to select which startup disk you want to use. At times, I've noticed Boot Camp changes the default startup disk in either the Windows or OS X preferences. Check both of those to make sure they're consistently set to whichever OS you want to start up by default.