Set the microwave oven to high and bake one potato for about three to four minutes. Bake four potatoes for up to 12 minutes. Baking times may vary slightly among microwave ovens.
For optimal outcome, make 1/2-inch-deep slits in various places on the potato. Slitting the potato lets steam escape, which hastens softening as it bakes. Heat the potato on a microwave-safe dish. Use a kitchen towel or oven mitts to remove the baked potato from the microwave to avoid injury. Slice open the potato, and use a fork to fluff the inside. Add toppings while the spud is hot.