Okay.. first a link checker.
Run it on your site, run it on any other site .. find all those hidden (but linked) folders.
Feel free to run it on this site, but as I have the stat pages, you’ll end up using the Task Manager to kill the process :)
This clears the registry, removes all the hidden crap and much more. Oh, and the Registry bit ? Don’t shout at me if you damage anything …. though you should be okay.
And much thanks to MartinDB !!