‘The installer information on the recovery server is damaged’ what do I do?
Help me please I have no idea what I have not myself into!!
MacBook Pro 13", macOS 10.13
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In the Applications folder delete any Install MacOS Sierra file.
1. Start up from macOS Recovery
To start up from macOS Recovery, turn on your Mac and immediately press and hold one of the following combinations on your keyboard. Command-R is generally recommended, especially if you never installed macOS Sierra 10.12.4 or later.
Command (⌘)-R
Install the latest macOS that was installed on your Mac.
Option-⌘-R
Upgrade to the latest macOS compatible with your Mac.
Shift-Option-⌘-R
Install the macOS that came with your Mac, or the closest version still available.