It is unsafe to open the bag to remove the giblets during cooking because scalding may occur. Also, spilled juices and fat may cause an oven fire. Cooking a frozen turkey in the microwave is not recommended because it can cook unevenly and might not reach a safe internal temperature throughout. Cook the turkey immediately after thawing. Turkey parts can be cooked in a dish with a lid, or cover the dish with plastic wrap and vent the top.
Timing can vary because of wattage differences, so follow the recommendations in the owner's manual.
Microwaves sometimes cook a whole turkey unevenly, so microwaving it in an oven cooking bag aids in even heat distribution. Microwaving a stuffed turkey is not recommended. The stuffing may not be cooked to the proper internal temperature when the turkey itself is done. Cook the stuffing in a separate casserole. Allow 3 inches oven clearance on top and 2 to 3 inches of space around the bird.