There is same question before.
https://www.wowza.com/community/questions/46957/cant-uninstall-wowza-from-windows-10.html
But it was not answered yet. But version was updated after previous question came.
So I would like to ask you have any clue or solution for it.
According to Logs… it just stops.
2019-04-2214:11:12KSTcommentserverINFO200-ServerShutdownHook.run[shutdown]—1206289.819------------------------- 2019-04-2214:11:13KSTcommentserverINFO200-MediaCache[MediaCache]: Stop—1206290.092-------------------------