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I want to reinstall my Macbook, but i do not want to loose all my saved WPA/WEP Wi-Fi profiles.

Is there a way to back them up and restore them after the reinstall?

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If you backup your keychain as well as the file /Library/Preferences/SystemConfiguration/com.apple.airport.preferences.plist and restore them on a new installed Lion, you won't lose them.

Another way would be to use the Migration Assistant on a Time Machine Backup of your old system, but this would restore ALL your system settings. That's probably not what you want, otherwise you wouldn't consider reinstalling.

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    Looking in com.apple.network.identification.plist in a text editor doesn't show any of my wifi SSIDs, but I do see them in /Library/Preferences/SystemConfiguration/com.apple.airport.preferences.plist
    – user24902
    Jul 6, 2012 at 2:30
  • OK, so backup this.
    – bot47
    Jul 6, 2012 at 10:57
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    Okay, so edit your answer.
    – Bryson
    Dec 30, 2013 at 22:37

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