title: SQL Server - evaluation period has expired error
body: <p>Yesterday ended trial period of SQL Server 2014 installed on my PC. I decided to use express edition and uninstalled SQL Server 2014 and installed Express edition. </p>
  
  <p>But when I open SQL Server Management Studio, there is still an error: </p>
  
  <blockquote>
    <p>evaluation period has expired</p>
  </blockquote>
  
  <p>Afterwards I installed developer edition of SQL Server 2014 which is free now as I understood. The installation was successful but I still have the same error when I open SQL Server Management Studio.</p>
  
  <p>How can I use Express or Developer edition version of SQL Server?</p>
  
  <p>Thank you</p>