How to resolve 'iCloud password does not match' error on MacBook Pro running macOS High Sierra 10.13.6?

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Level 1

4 points

How to resolve 'iCloud password does not match' error on MacBook Pro running macOS High Sierra 10.13.6?

iCloud is not logging to Macbook Pro OS 10.13.6. The message is that the password does not match. I am able to login on my newer devices (iPhone and iPad). I have also tried the old accounts deletion and no result.

[Re-Titled by Moderator]

Original Title: iCloud on High Sierra

Posted on Jan 9, 2026 1:40 AM

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Answer 1

sberman

Level 10

272,622 points

Jan 9, 2026 2:11 PM in response to angélico

macOS High Sierra was introduced by Apple in September 2017, nearly 8½ years ago.

Since then, Apple has made changes to iCloud Keychain.

Set up iCloud Keychain and iCloud Passwords on all your devices - Apple Support

Either your Mac is very old and likely obsolete or it’s time to upgrade macOS.

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