To find the correct fuse(s), you need to consult your 1994 Nissan Maxima owner's manual. The manual will have a detailed fuse box diagram showing the location of the fuse box(es) (there might be one under the hood and another inside the car, usually near the driver's side), and which fuse controls which circuit. Look for fuses labeled things like "Power Windows," "Window Motor," or possibly even individual fuses for each window.
Without the owner's manual, it's impossible to give you the precise location. Trying to guess could lead to you replacing the wrong fuse, or worse, damaging something.