If Erase All Data (Factory Reset) is grayed out, a pop up a notification that says "Action Not Allowed" appears, or the screen reverted back to the Kiosk Setting Page, then your kiosk does not need to be reset and no further action is needed.
You are all set to continue to utilize the kiosk. If you were able to select Erase All Data (Factory Reset), please continue to follow the steps below to complete this Reset.