I tried installing it and am not sure what happened. Acted as if Norton was taking over and one other download button said I had to buy something. Is is safe and will it clean up a bunch of stuff.
Read this article from PCWorld - or only the first paragraph to give you an idea of this very useful program.
It has been around quite a while and I have seen no adverse comments on the program. Jut be sure to use it at the default settings and you will not go wrong.
This is a free program, you can get it here, or a download source of your choosing.