Change SqlServer Password

To change the password used by the SQL Server service

  1. Click the Start button, point to All Programs, point to Microsoft SQL Server 2008 R2, point to Configuration Tools, and then click SQL Server Configuration Manager.

  2. In SQL Server Configuration Manager, click SQL Server Services.

  3. In the details pane, right-click SQL Server (<instancename>), and then click Properties.

  4. In the SQL Server (<instancename>) Properties dialog box, on the Log On tab, for the account listed in the Account Name box, type the new password in the Password and Confirm Password boxes, and then click OK.

    The password takes effect immediately, without restarting SQL Server.

Next Recommended Reading Change SA Login Password Using SQL Query