First, you need to login to your sql server windows authentication mode.
Selecting Security
Right click on "sa" user, then select Properties.
Next, Select General
Entering your sql password, then click Status
Selecting Enabled login, then click OK button.
Right-clicking on your SQL Server, then select Properties
You need to change from "Windows Authentication mode" to "SQL Server and Windows Authentication mode", then click OK button.
Right-clicking on your SQL Server, then select Restart.
Entering your user and password, then connect to SQL Server.
