Lift up about six inches on the bottom sash. Push the levers on the lack and pull the top of the sash out. If your window has sliding levers on each side of the top of the sash, push the levers in towards the center of the window and pull the top of the sash out.
Grab both sides of the sash and lay the sash horizontal to the frame. Lift one side of the sash and remove.
Pull down the top sash until you can see the lever or levers on the top of the sash. Push in the levers as you pull out the top of the sash and lay the sash horizontal to the frame. Lift one side of the sash and remove the sash from the frame.
Place the pry bar end against the stop that holds the bottom sash in the track, if you have the old style double hung window without the levers. Gently tap the pry bar with a hammer until the end of the pry bar is under the stop that holds the sash. Push on the pry bar to lift the stop and remove. There is a stop on each side of the frame that holds the window sash in the track, remove both sides.
Cut the rope, using a utility knife, to free the bottom sash and set the bottom sash aside. Pry out the middle bead that separates the two sashes. Slide the top sash down and cut the rope to remove the top sash.