How to Change BIOS

Open the 'Apple' menu and click 'System Preferences.'
Click the 'Startup Disk' icon in the 'System' section.
Click the system you want to use. To start Windows by default, click the 'Windows on BOOTCAMP' option. To start OS X by default, click 'Mac OS X.' Click 'Restart' to restart in Windows, or close the 'System Preferences' Window.
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