title: Recursively change file extensions to lower case
body: <p>I have a game that I play and mod a lot, and a lot of the files in the game have file extensions that are in all caps, which bothers me quite a bit. I'm trying to change them all to be lowercase, but there are numerous folders in the game files, so I'm having to be very repetitive. Right now, I'm working with this:</p>
  
  <pre><code>cd\program files (x86)\Activision\X-Men Legends 2\Actors
  start ren *.IGB *.igb
  cd\program files (x86)\Activision\X-Men Legends 2\Conversations\
  start ren *.XMLB *.xmlb
  cd\program files (x86)\Activision\X-Men Legends 2\Conversations\act0\tutorial\tutorial1
  start ren *.XMLB *.xmlb
  </code></pre>
  
  <p>and so on for each and every folder in the game files. I have a very long .bat file where I just have line after line of this but with a different destination folder. Is there a way to streamline this process so I don't have to manually type out each folder name? Also, is there a line that I could add at the beginning to automatically run as an administrator, so I don't have to make sure to run the .bat file as an administrator each time?</p>
  
  <p>I'm not looking for anything complicated, and I'm very inexperienced with coding other than the small amount of stuff I've been able to search up. </p>