title: SQL Server windows Authentication connection issue
body: <p>While i am installing SQL Server 2008, i selected mixed authentication mode. But after the installing while i am trying to connect with the database in Windows authentication it gives the following error :</p>
  
  <pre><code>TITLE: Connect to Server
  ------------------------------
  
  Cannot connect to DEWASISH-PC\SQLEXPRESS.
  
  ------------------------------
  ADDITIONAL INFORMATION:
  
  Login failed for user 'dewasish-PC\dewasish'. (Microsoft SQL Server, Error: 18456)
  
  For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&amp;EvtSrc=MSSQLServer&amp;EvtID=18456&amp;LinkId=20476
  
  ------------------------------
  BUTTONS:
  
  OK
  ------------------------------
  </code></pre>
  
  <p>But when in am trying the same with SQL Server authentication mode, I am able to connect with the database. Can any one tell me in what manner i able to connect with the database with the help of windows authentication ? </p>