Step 2: Preparation.
Use your fork to poke holes all over the potato. As deep as possible, but not all the way through.
Fill the bowl 1/2 way with water.
Set the potato slowly into the bowl. The water should cover at least 1/2 of the potato.
Step 3: Cooking.
Your microwave may have a "baked potato" setting like ours and if so, set it to bake 1 potato. It should start cooking with about 5-7 mins on the timer.
When the timer goes off, turn the potato over and restart the microwave on the same setting.
Once that cycle is done, pull the bowl out of the microwave and poke it with your fork. If the fork is easily pushed to the center, then it's done. But if you have to push hard on the fork to get to the center, the potato needs a few more minutes.
The last pic is what your fork should look like if the potato is done.