Mac OS creates a new keychain

User keychain on the saved or on the authentication password, but the user has logged into the system with a new password for one months, also do not remember the old password, so some apps will be asked to enter the Keychan password when launched. So we can only rebuild the keychain.

* Close all applications and choose Go to Folder from the Go menu in the finder-> Library

* Enter this path: ~/library/keychains

* Select All items in this Keychain folder and drag them to the Trash.

* Restart the computer immediately.  After the user logs, a new login keychain should has been created. You can verify this by opening Keychain Access (in the Utilities folder in the Applications folder), and checking to see T  Hat there ' s a keychain named login in the source list. It should is unlocked automatically when the user logs in.

Mac OS creates a new keychain