How to Resolve Keychain Errors

Summary

How to utilize the Self Service app to resolve macOS Keychain problems including prompts, pop-ups, "Local Items" notifications, and errors.

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Instructions

 If you're experiencing frequent pop-ups related to Keychain errors, follow these steps to resolve:

• Open the Self Service app 

• Select "Fix Keychain" which will resolve the issue with the pop-ups asking for your Local Keychain password on login or boot.
• Restart your computer when the process completes

If Self Service Isn't Working

You can also try the following if the Self Service app is not working:

• Open Keychain Access (Located in Applications > Utilities)
• From the Keychain Access menu on the top left of your screen, choose Preferences.
• Click Reset My Default Keychains.
• Authenticate with your account login password.
• Quit Keychain Access and restart your computer. 

Resolve "Local Items" Keychain Errors

How to reset the keychain folder to resolve prompts to unlock "Local Items" keychain. This sometimes happens in a loop and the notification will not go away.

Reset Your Keychain

The quickest way to reset your keychain is to follow these steps:

• Open Keychain Access (command + space), which is in the Applications folder under Utilities.
• From the Keychain Access menu on the top left of your screen, choose Preferences.
• Click Reset My Default Keychains.
• Authenticate with your account login password.
• Quit Keychain Access and restart your computer.

If that doesn't resolve your issue, you can also try the following:

•  In Finder Select Go and hold down the option key to reveal Library. 
• Open the Keychains folder, then look for a folder with a name similar to this: A8F5E7B8-CEC1-4479-A7DF-F23CB076C8B8
• Move the folder (not the whole Keychain folder, rather the one that is a combination of letters and numbers like the image below) to the trash and empty trash.
• Restart your Mac.
  • After restarting the computer, a new folder with a similar name is created in the Keychains folder automatically. 
• Login and verify the message no longer appears.