title: ERROR: The file 'wp-config.php' already exists
body: <p>I clicked on the 'Update WordPress' link in the admin dashboard of my WordPress site, and I am getting this error:</p>
  
  <pre><code>"The file 'wp-config.php' already exists. If you need to reset any of the 
  configuration items in this file, please delete it first. You may try installing now."
  </code></pre>
  
  <p>When I try to click the "installing now" link, it seems that WordPress is installing fresh. I want to keep all of the content of my WordPress installation.</p>
  
  <p>I have tried to change the name of the wp-config.php file but that didn't do anything. </p>