Dont know how uninstall Gears Of War 4

Jun 30, 2018
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Pls im getting a problem with my game , because it crashes at campaing , so i think if i uninstall it , it maybe solve the problem , but i dont know how to uninstall it cleaning all the files. When i try to uninstall , it just deletes the icon , but dont clean the files installed , there still 128 gb :(PLS Someone help me