First off let me state that this is a legal copy of xp home on the computer I installed it myself for my wife's grandpa.
It looks like since the last windows update he is getting the windows genuine advantage popping up telling him that his version of xp could be bad. So far I have used jellybean key finder to double check and make sure that I didn't possibly put the code in wrong for it but it is correct. What else is there to do to get rid of the error can m$ do anything.
The funny part about it all is that if you click on it it tells you possible causes and this and that and it offers to sell you a copy of vista lol. It is the legit error though i double checked that also