Is it safe to delete duplicate files found by CCleaner?

Related questions

1. Is it safe to install CCleaner?
2. Is CCleaner malware?
3. Does CCleaner delete photos?
4. Should I use CCleaner with Windows 10?
5. Is piriform CCleaner any good?
6. Did CCleaner get hacked?
7. Who bought CCleaner?
8. What is the purpose of CCleaner?
9. Is it safe to wipe free space with CCleaner?
10. Is CCleaner any good?

Tags

1. #finder
2. #remove
3. #search
4. #deleted
5. #duplicates
6. #please
7. #however
8. #safely
9. #ccleaner
10. #modified
11. #needed
12. #duplicate
13. #finds
14. #which
15. #determine
16. #files
17. #content