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I was installing macOS High Sierra on a old MacBook Air (more than 12 years) with Yosemite. But it didn't work, it shows, during the installation, a message like this:

enter image description here

However doing that it didn't work, it showed this screen

enter image description here

Clicking on restart it goes again the loading screen:

enter image description here

and after this screen it goes again to the High Sierra installation:

enter image description here

The installation fails again (image 1), and it keeps in this loop and so can't boot on the Yosemit OS as previously.

Do you know how to solve this issue?

Thanks!

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  • If your MacBook supports internet recovery, try it!
    – lhf
    Commented Jan 31 at 13:45
  • Also tried that but same issue! Thanks
    – Oscar
    Commented Jan 31 at 14:58

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