The copy protection works in the way that the license file is linked to the Serial Number of the MAC OS X.
To display the Serial Number,
• | Choose About This Mac from the Apple Menu ( Apple logo on the Menu Bar)) |
• | Double-click the version text, for example "Version 10.7" |
or click on More Info on this screen
To distinguish a Serial Number Key and the Serial Number of the MAC computer it is referenced as System ID - MAC OS X in this documentation.