Will my data on the Macbook Pro be destroyed if I upgrade to macOS Sierra from OS X El Capitan?

1 Answer 1


It will most likely all be there. It will only update the operating system and leave your data untouched. It is still a good idea to make a backup in case something goes wrong.

  • 3
    Provided it goes well. It's always a good idea to have a backup of your files before upgrading anything.
    – Lizzan
    Oct 26, 2016 at 9:02

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