Cara Reset pass "sa" pada sql server

seharian ini c bebek berkutat masalah dengan login SQL server dan setelah aga lama mencari solusi  ak hirnya bisa jg dengan cara seperti ne

1.Open the SQL Server express management studio
2.Connect to SQL Server using windows authentication
3.Right click the server name and choose properties
4.Go to security tab. Change server authentication to “SQL Server and Windows Authentication mode”
5.Click OK and restart SQL Server
6.Go to SQL Server studio management express
7.Expand the server and choose security and expand logins
8.Right click on SA, from properties modify the password and confirm password
OR
To reset the sa password, you can make the following:
1. Login to the SQL Server box as the Administrator.
2. Run SQL Server Enterprise Manager.
3. Right-click the server name and choose ‘Edit SQL Server Registration properties’.
4. Choose ‘Use Windows authentication’ and click OK button.
5. Expand a server, expand a Security and click Logins.
6. Double-click the sa login and specify new password on the General tab. (enable Login to)
Or You Can Use
USE [master]
GO
ALTER LOGIN [sa] WITH DEFAULT_DATABASE=[master],
DEFAULT_LANGUAGE=[us_english], CHECK_EXPIRATION=ON, CHECK_POLICY=ON
GO
USE [master]
GO
ALTER LOGIN [sa] WITH PASSWORD=N’<insert_new_password_here>’ MUST_CHANGE
GO
or
From a command prompt
OSQL -S <insert_servername_here> -E
1> EXEC sp_password NULL, ‘<insert_new_password_here>’, ‘sa’
2> GO