MacBook Air won't boot into OS X after Windows 7 was installed via Boot Camp
20,966
Solution 1
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
Solution 2
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.
Author by
DrFred
Updated on September 18, 2022Comments
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DrFred over 1 year
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?
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peelman over 12 years'c' boots to the cd-rom on machines equipped with them. the
Alt
key is the simplest way, but i thought there was a way to make the switch in windows so it would come back to OS X. i havent had to use boot camp in years though... -
user3333603 over 12 yearsIn windows you use the boot camp control panel to switch startup disks (OS X or Windows). The same preference can be changed in system preferences.