Press F10 to Save and Exit from the EZ Mode Screen.
Here is a list of your ASUS UEFI BIOS Shortcut Keys:
F3 = My Favorites
F5 = Default BIOS Settings
F6 = Q-Fan Control
F7 = Toggles between Advanced Mode and EZ Mode
F8 = Boot Menu
F9 = Quick Notes
F10 = Save and Exit
F11 = EZ Tuning Wizard
