tree command just walk in every directories in the current directory which you are, and because the windows is saved in c:/ it can even take 5 or 10 minutes to complete
If you really highlight some information when you do this, it will pause it then if you scroll up and around you can notice it is reading your files and every single thing on your computer. This can be used to hack people's information.
You really wanna fuck the computers? Install REGFUCK on all of the computers and max the settings then run it to see the "magic" (Why does this sound like an ad