How to Switch from Mac to Windows at Startup

Switching at Startup
1. Turn your Mac off.
2. Hold down the Alt (Option) key on your Mac keyboard.
3. Turn on your Mac computer. Select 'Windows' to load Windows on boot-up.
Changing the Default Boot Option
4. Click the Apple logo when in Mac mode.
5. Click 'System Preferences,' and then click 'Startup Disk.'
6. Click either 'Windows' or 'Mac OS X' as your startup disk.