How do you reattach plastic window dividers?

To reattach plastic window dividers, first, clean the surfaces to remove any dirt or adhesive residue. Apply a strong adhesive or silicone sealant designed for plastics along the edges of the divider. Press the divider firmly into place, ensuring it is aligned correctly, and hold it for a few moments to allow the adhesive to bond. Finally, let the adhesive cure as per the manufacturer's instructions before using the window.