If the probate court agrees that the Will has not been modified in any way after it was first drawn up, you are one step ahead of having no Will at all. Keep the disk or CD to use again, and then find that you have lost the disk, or the instruction book, when you come to use them again. This is determined by the laws of Descent and Distribution that apply in your State. Descent is the right to inherit or share in the property of an estate of a person who died intestate. In general, it is based on blood relationship to the deceased.
Some states consider an adopted child to be a lineal descendant.
Stepchildren do not inherit from a stepparent except in a few states. Brothers and sisters inherit only when there are no other survivors of priority - for example, the intestate's spouse, children or grandchildren. Nephews and neices inherit only if their parent who would have inherited from the intestate is deceased. In some States, one or both parents inherit when their child dies childless and without a Will. The laws vary as to whether the parents must share with the brothers and sisters of the intestate.