How can I change from SQL Server Windows mode to mixed mode (SQL Server 2008)?

Question

I have installed SQL Server 2008 Express Edition, but by mistake I kept the Windows authentication mode.

Now I want to change that to SQL Server mixed mode. How can

Answer 1

From this: http://weblogs.sqlteam.com/peterl/archive/2008/06/19/How-to-change-authentication-mode-in-SQL-Server.aspx

One can catch that you may change it through windows registry key

(SQLEXPRESS instance):

"Software\Microsoft\Microsoft SQL Server\SQLEXPRESS\LoginMode" = 2

... and restart service