How to reset Keychain for macOS

NOTE: When you delete your keychain any saved password (i.e. passwords for wi-fi networks, websites, etc) WILL be removed and will have  to be re-added when the new keychain is created.

To reset your keychain in macOS 10.9 to macOS 10.14 :

1. Open Keychain Access, which is in the Utilities folder within the Applications folder.
2. On the sidebar choose the keychain "login"
3. Choose File -> Delete Keychain "login.
4. Choose the option "Delete File and References"
5. Quit Keychain Access
6. Log out of the account
7. Log back into the account

When you log back in a new Keychain will be created.