What does CCleaner actually do?

Related questions

1. Does CCleaner still have malware?
2. Should I use CCleaner with Windows 10?
3. Does CCleaner fix registry errors?
4. Did CCleaner get hacked?
5. Does CCleaner delete photos?
6. What removes CCleaner?
7. Is CCleaner really useful?
8. Can I trust CCleaner?
9. Is there a problem with CCleaner?
10. Is it safe to delete duplicate files found by CCleaner?

Tags

1. #taking
2. #uninstalling
3. #serve
4. #delete
5. #terms
6. #programs
7. #temporary
8. #simplest
9. #space
10. #includes
11. #purpose
12. #freeing
13. #these
14. #drive
15. #duplicate
16. #files
17. #machine
18. #ccleaner
19. #cleaner
20. #finding
21. #tools
22. #cleanup