To clean mold in windows, first wear protective gloves and a mask to avoid inhaling mold spores. Mix a solution of water and mild detergent or vinegar. Use a sponge or cloth to scrub the moldy areas, paying attention to both the glass and the frame. Rinse with clean water and dry thoroughly to prevent mold from returning.

Wear protective gear, scrub with detergent or vinegar, rinse, and dry to prevent mold recurrence.