It is a system password manager and contains the passwords for almost all of your Mac-based applications such as auto-fill passwords from Safari, SMTP, IMAP, POP passwords from Mac Mail, etc. Keychain Access is a feature built into Mac’s that stores and saves all the passwords. If your user password was reset because you forgot your password, and you can’t provide the old password for the keychain, you won’t be able to access the information in the old keychain, and a new blank keychain is created. This is the password you're now using to log. Enter the new password of your user account in the New Password field.

This is the password you were using before the password was reset.

From the Edit menu in the menu bar, choose “Change Password for Keychain 'login.' ” Enter the old password of your user account in the Current Password field. In addition to the other's suggestions, review the following to determine if it is applicable: Mac OS X: Keychain Access asks for keychain 'login' after changing login password. Windows XP/Vista system files resources base: Mac Os El Capitan Cursor Pack for Windows:

Picasa for mac os x lion