Clean vs. Complete Clean in the CClean vs. CClean Professional

Downloading an update and notice the two versions list different types of cleaning. Sorry, but can't find what the difference is in the two approaches. Can anyone tell me what the Professional cleans that the free version doesn't. Thanks.

Yeah, it's just badly worded. The developers have informed us that "complete cleaning" refers to the multiple pc users at a time cleaning. As far as per user, cleaning is rhe same in pro and feee.

I've moved this topic to the ccleaner discussion board