Support & Common Questions

Get more details on the subjects our customers ask about frequently.

Support topics

Why does the installer say my computer doesn’t have a valid serial number?


Hidden requires a valid Apple serial number. Follow these instructions to check your computer:

  • Click on the Apple menu icon on the top left of your screen
  • Choose “About This Mac”
  • In the popup window click “More Info”
  • A new window will open, look near the bottom of the list on the right hand side for “Serial Number (system):”
  • If you see “SystemSerialNumb” or “System Serial #” then you might need to have your serial number fixed. It's a quick job and your local Apple store should be happy to help!

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