Batman: Arkham Knight Save Game Location
Windows
Batman: Arkham Knight save games can be found here:
C:\Games\Batman Arkham Knight\BMGame\SaveData
C:\Users\[user_name]\Documents\WB Games\Batman Arkham Knight\HERE WILL BE NUMBERS\SaveData\backup
Steam: C:\Program Files (x86)\Steam\userdata\[user_id]\208650\
CPY: C:\Users\[user_name]\Documents\CPY_SAVES\CPY\208650