title: "Could not find a part of the path," on path that does exist
body: <p>I am attempting to update the lock screen background like this:</p>
  
  <pre><code> string filename = @"C:\app\screenshot.temp.jpg";
   string finalLocation = @"C:\Windows\System32\oobe\info\backgrounds\backgroundDefault.jpg";
   File.Move(filename, finalLocation);
  </code></pre>
  
  <p>Unfortunately this throws a System.IO.DirectoryNotFoundException exception: </p>
  
  <pre><code> An unhandled exception of type 'System.IO.DirectoryNotFoundException' occurred in mscorlib.dll
   Additional information: Could not find a part of the path.
  </code></pre>
  
  <p>However when i browse to C:\Windows\System32\oobe\info\backgrounds in Windows Explorer, CMD, or Powershell it does exist. I also have the security to write, rename, and delete files in that location (and the C# process is running in my context). What is going on?</p>