About 4 years ago we put new composite deck boards on our deck. Some of the screws have been rusting the past 2 years. I finally decided to pull them out and replace them but they are breaking from the rust. Should I just leave them so that at least it will have a screw or go ahead and try to take them out. And if I try to take them out and they break then what should I do. I am not trying to replace the boards so I do not want to pull them up.

Thank you!