Does CCleaner really delete everything?

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Tags

1. #frees
2. #actually
3. #space
4. #deleting
5. #improved
6. #maintenance
7. #files
8. #which
9. #automatically
10. #believe
11. #their
12. #cleans
13. #computer
14. #discs
15. #temporary
16. #ccleaner
17. #result
18. #improves
19. #performance
20. #people