How to reinstall macOS — by Apple Support

intermediatepageLink only (©)

Explains how to reinstall macOS from macOS Recovery, which macOS version you will get and what to try if the reinstall fails.

Quick steps

Back up your Mac
Start up from macOS Recovery
Choose the reinstall option
Let the installation finish

Paraphrased from the source. Menus can differ by version, so check the original for full details.

Read the full article on support.apple.com

Source: How to reinstall macOS by Apple Support. Licence: Link only (©).

Source reviewed: 2026-11-02
Link checked: 2026-11-02
Tested hands-on: Not by Oddbyte.Me

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