My Apple Mac Pro keeps prompting access to keychain but when I try to put in my password it doesn't accept. how do I reset password to reset keychain.
I keep getting message on my mac pro saying "keychain login cannot be found". I have tried to reset with my password but it doesn't seem to work as message is repeated over and over again.
I should add that I bought the mac pro second hand, so if previous owners had a keychain password how do I clear it?
Mac Pro, OS X 10.11