I bought this product because FTM 16 that I have been using for a couple of years crashed on me and the original disk would not reinstall. I purchased another copy in hopes that a new disk would get me back in business. It has the same problem as my original disk and will not install on my XP Professional Computer. I don't think it fair to blame my problem on the particular copy of FTM or Amazon. I am not sure whether to blame Ancestry.com or Microsoft for my difficulties.