Setting up a used MacBook Air
ho do I put my information in. Setting up a used MacBook Air thats used
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Hi,
If previous owner of your MacBook Air reseted to factory setting, following document could help your question.
Set up your MacBook Air - Apple Support
If it doesn't help, start up in Recovery Mode, and use DiskUtility to reformat the drive, then reinstall macOS.
Use macOS Recovery on an Intel-based Mac - Apple Support