I have a similar question but with different details. I just started using CCleaner. I have a (small sized) C: drive that contains the operating system. I have an external E: drive to make up for small size of the C: drive. The E: drive contains mostly programs that I have added since buying the E: drive.
No doubt because of my lack of technical expertise, I have not completely understood the messages in this thread so I apologize if I am restating an already-answered question.
Will/should CCleaner clean and repair my E: drive or only my C: drive?