FAQ: - It will delete my programs/movies/photos/musics? * No. It will delete only unnecessary files (Invisible for us) - It will destroy my system partition? * No, that cleanup method it's a part of Windows OS, designed by Microsoft ;) - I've done this step by step, but it's not recover even a 1MB, what's wrong? * Probably nothing. You have very clean partition :) - It will delete whole files from my partition? * Look at question number one ;) It's works on Windows XP, Vista, 7, 8.x, 10 OS I'm not responding for any damages, after cleanup. If any could be real, because it's never happened to me :D