I'm installing is this new computer, but I had used it in older versions at other PC's. I think is very thorough cleaning files that are not necessary, also to delete trace of certain activities. I recommended it to my fellow workers and almost everyone at the office is using the software. Thanks for such a valorous tool.
It keeps adding up the figures on what you have deleted and then it wants you to buy a new one so I am not using it near as often, but otherwise the program itself is very nice.