well, I don't have it anymore, so I forget the gui, but every process worked great...cleans registry, cleans dead links, dead programs in your uninstall, actually does a fair job of tweaking your internet connection, other stuff, lets see, I think it has an installer too...good for uninstalling every file on uninstall, I can't remember...lets put it this way...if I was servicing computors, I'd take this on disc with me, and clean everybody up that I visited...it's pretty good...the thing is, with a combination of free programs, you can do everything in the mechanic, but the mechanic is a very good program