How can i restore to default CCleaner settings?

Any idea?

Open ccleaner and right click on the word for each section heading (Internet Explorer, Windows Explorer, System etc)

Choose restore default state.

I want to restore all settings... Not only the Cleaner's part.

Any idea?

Not sure I have any idea what you are asking, if the first reply didn't address the question.

Simple:

1. Uninstall.

2. Install.