title: script to rename all files & directories into lowercase (including unicode)
body: <p>(1)
  I have about 200 directories, with probably a 1000 sub-directories containing 10,000 of files.</p>
  
  <p>I would like to keep the names intact, but change them all to lower case, including Unicode characters such as 'É' (to 'é').</p>
  
  <p>Can you advise how it could be done through PowerShell? It is my own computer and I have admin rights.</p>