title: Error 0x84b10001 when installing SQL Server 2012 on a machine with VS2013
body: <p>I'm trying to install <a href="http://msdn.microsoft.com/en-us/evalcenter/hh230763.aspx" rel="nofollow noreferrer">SQL Server Express with Service Pack 1</a> on my Win8 Pro (x64) development machine and I'm consistently getting an error 0x84b10001 when trying to install it:</p>
  
  <p><img src="https://i.stack.imgur.com/7ijSO.png" alt="error message"></p>
  
  <p>Antivirus is disabled during the installation (done as Administrator) and I tried 2 versions of the SQL Server Express package and I'm getting the same issue with both.<br>
  I'm getting the same issue whether I'm trying the x86 or x64 packages.</p>
  
  <p>I suspect that the issue comes from the fact that Visual Studio 2013 has already installed some SQL Server packages but I do not see any way to update and modify these to add the Management Studio for istance.</p>