The power window fuse location in a 2001 Ford Explorer is
in the underhood fuse box. However, it's
not a single fuse for all windows. There are likely several fuses involved, possibly one for each window circuit or one for the front and one for the rear. You'll need to consult your owner's manual for the exact fuse locations and amperages. The manual will have a diagram of the fuse box showing which fuse controls what.
Without the manual, it's difficult to give a precise answer. The underhood fuse box is usually a fairly large plastic box, often near the battery. Look for a diagram on the inside of the fuse box cover to identify the correct fuses.
