How do I extend a partition without losing data?

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Tags

1. #click
2. #either
3. #shortcut
4. #enlarge
5. #volume
6. #unallocated
7. #option
8. #available
9. #drive
10. #there
11. #select
12. #resize
13. #partition
14. #shrink
15. #reduce
16. #according
17. #because
18. #right
19. #requirements
20. #space
21. #extend