title: Trying to change SQL Server IP settings. Configuration Manager telling me "The specified file is read only"
body: <p>I've just installed SQL Server Express 2012 on my Windows 7 machine. When I go to the Configuration Manager it allows me to enable/disable the TCP/IP protocol, but when I try to change any of the IP settings, on pressing 'OK' or 'Apply', it's displaying a dialog that says:</p>
  
  <blockquote>
    <p>The specified file is read only. [0x80071779]</p>
  </blockquote>
  
  <p><strong>Update:</strong> The issue seemed to resolve itself. What's the inverse of Murphy's Law?</p>