To remove hard water spots from windows, create a solution of equal parts white vinegar and water. Spray it on the spots and let it sit for 5-10 minutes. Scrub the area gently with a soft sponge, then rinse with water. For tougher stains, use a paste made from baking soda and water or try a commercial hard water remover. Be sure to rinse and dry the windows afterward to prevent streaks.

Use a mix of white vinegar and water to remove hard water spots from windows. Let the solution sit, then scrub with a sponge. If needed, apply baking soda paste or a commercial product for more stubborn spots. Regular cleaning helps prevent hard water buildup.