Grove Agent 4 update to GA 5 reinstall

Hi, i did upgrade from grove agent 4 to grove agent 5, now i have reinstalled windows and i want to install again grove agent.
Do i have to install grove agent 4 and then grove agent 5 or can i install grove agent 5 from the first one???
Does the library from GA 5 also contain the library from GA 4??? (studio kit, rock kit, vintage kit, percussion kt).
Thank you:)