SQL Server Windows authentication changed to Mixed Mode authentication

1. In the current server right-click on the "property page", "Security", tick SQL Server and Windows Authentication mode, OK.

Because the SA is not enabled by default, if you enable the SA account login, you will also need the following settings:

2, expand "Security" under the current server, expand "login name" will see the login SA, right-click it-Properties, "Select Page" Selected "status", the right of the login select "Enable." "General page" to modify the sa account password, OK.

This allows you to log on with SA.