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56 Chapter 3 Problem, Meet Solution
Locating Your Product Serial Number
Use one of these methods to find your computer’s serial number:
 Turn your MacBook Air over. The serial number is etched into the case, near the
hinge.
 Choose Apple () > About This Mac and then click the version number beneath the
words “Mac OS X.” Clicking cycles between the Mac OS X version number, the build
version, and the serial number.
 Open System Profiler (in /Applications/Utilities/) and click Hardware.
Serial number