Score the walls with the scoring tool in large, round, spiral motions.
Wipe the wall with a saturated sponge of warm, soapy water, starting at the top. Let it soak in for two or three minutes. Get it wet and don’t worry about water dripping down and all over, since you are in a bathroom.
Pull a piece of wallpaper that is peeling up from the wall, either where you scored it or at an edge. Attempt to get the whole piece away from the wall without it tearing into smaller pieces. Use your putty knife to help scrape the wallpaper off by pushing it from underneath.
Soak the wall again, starting at the section that you are working on, and let it set for another two or three minutes. Preferably, you will move in the general direction of top to bottom so that the lower paper will have more time to soak.
Peel carefully and soak the walls with warm, soapy water until you have removed all the wallpaper. Wrap up in garbage bags or the painter’s plastic and remove from your home.