Please enter your password (iCloud Password)
MacBook (13-inch Aluminum Late 2008), OS X Yosemite (10.10.3)
MacBook (13-inch Aluminum Late 2008), OS X Yosemite (10.10.3)
Take a look at these support articles and follow the steps from them:
https://support.apple.com/en-us/HT203192
http://www.macobserver.com/tmo/article/os-x-on-keychains-first-aid
Hope this helps!
Delete the password from Keychain Access (Applications/Utilities). While there, Keychain Access menu First Aid.
Please enter your password (iCloud Password)