Can I delete old Windows Installer patch files?

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Tags

1. #limited
2. #especially
3. #safely
4. #removed
5. #patch
6. #stores
7. #cache
8. #files
9. #space
10. #drive
11. #while
12. #directories
13. #recommended
14. #essential
15. #system
16. #installer
17. #windows
18. #really
19. #folder
20. #already
21. #delete