title: Unable to upgrade to Microsoft SQL Server2008 R2 RTM - Express with Advanced Services
body: <p>I am trying to upgrade my current Express edition to <em>Express with Advanced Services</em> for supporting full-text search. </p>
  
  <p>The current system setup is:</p>
  
  <ul>
  <li>OS version: Windows server 2008 R2 web server 64 bit</li>
  <li>SQL Server 2008 R2 Express, SP1, v10.50.2500.0</li>
  </ul>
  
  <p>I have downloaded the SQL Server with Advanced Services. I am unable to upgrade the edition. The installation step goes without any issues and even getting <em>Edition upgrade completed</em> page. But once I click the close this page, an error will pop up.</p>
  
  <blockquote>
    <p>SQL Server Setup has encountered the following error: Invoke or
    BeginInvoke cannot be called on a control until the window handle has
    been created.</p>
  </blockquote>
  
  <p>Can some please assist me here to the right direction?</p>
  
  <p>I could see that the version of SQL Server Express with Advanced Services is 10.50.1600.1. Is this the cause? So should I downgrade the sp1 to normal Express r2 edition before upgrading?</p>
  
  <p>Downloaded link for the Express with advanced services <a href="http://www.microsoft.com/download/en/details.aspx?id=25174" rel="nofollow">http://www.microsoft.com/download/en/details.aspx?id=25174</a></p>