title: How to change default sql server configuration in Microsoft webmatrix?
body: <p>I am using webmatrix ( <a href="http://www.microsoft.com/web/webmatrix/" rel="nofollow">http://www.microsoft.com/web/webmatrix/</a> ) to install DNN (dotnetnuke). when i try to install it is asking <strong>'sa'</strong> password for SQL express.</p>
  
  <p>I am using SQL server 2012 and when i enter 'sa' password webmatrix says "<strong>The password for username 'sa' is invalid</strong>".
  i can connect to database using SQL server management studio with the same sa password with server name SATISH-PC\SQLEXPRESS .
  I referred all microsoft documentation for solving problem but not solved.
  Finally i try to install DNN using web installer 4.6( <a href="http://www.microsoft.com/web/downloads/platform.aspx" rel="nofollow">http://www.microsoft.com/web/downloads/platform.aspx</a> ) then it shows "Database Server: .\SQLexprress" and ask for password..
  Actually my database server is SATISH-PC\SQLexpress or SATISH-PC. </p>
  
  <p>I searched around "%userprofile%\my documents\iisexpress\config" to change default SQL server configuration but i am unable to find default configuration related to webmatrix. </p>
  
  <p>I think this is the problem if not please let me know what the problem is.
  if this is the problem please tell how to configure database server in webmatrix.</p>
  
  <p>Thank you.</p>