Put down drop cloths. Removing wallpaper reactivates some of the adhesive because you are wetting it. This causes the pieces to stick to the floor and possibly cause damage. Drop cloths protect your flooring and make it easier to clean up when you finish.
Perforate the wallpaper. Wallpaper perforators mark tiny holes in the wallpaper to allow the removal solvent to seep through to the adhesive without damaging the walls beneath.
Mix the removal solvent. The wallpaper removal solvent can be mixed with hot water, according to the manufacturer's instructions, in the paint tray.
Apply the removal solvent. Using a medium nap roller allows you to apply the solvent easily and with less waste. Apply the removal solvent solution to the perforated wallpaper just as though you were painting the wall.
Allow the solvent to work. Wallpaper removal solvents need time to break down the adhesive, usually around 10 to 15 minutes.
Start peeling. With your hands, begin peeling off the wallpaper at a corner where it's easy to grasp.
Scrape the wallpaper off. Hold the plastic putty knife at a slight angle, about 15 degrees, and scrape off the wallpaper. Repeat Step 4 through Step 7 until you remove all the wallpaper from the walls.