First stop and think about what is commonly on a laptop screen. It's usually soda spray, coffee, finger prints, mucus from a sneeze, etc. it's all typically food or body fluids. What is a solvent for all of them...??? WATER !!! The best cleaner is always a soft cotton cloth, soaked with slightly warm water, and rung out well. Simply use gently motions to remove the "gunk" from your screen. Using cleaners such as Windex or others is NEVER A GOOD IDEA since you never really know what is in them and how it might affect the finish of your screen. A soft cotton cloth (t-shirt) and luke warm water are the best methods to clean your screen. Hope this helps!