W7 Ultimate 32bit just became non genuine today. Only thing I did was install Windows Defender Update KB915597, I'm using Daz's loader. Sorry I can't remember which version but it was installed in Feburary this year. I always make an image of my c: drive before installing updates. I loaded the image to the c: drive and all is well again. So it looks on the surface like it might have something to do with that update. Do you think I need to update Daz's loader to a more modern version? If so, do I just install the new loader over the old one? I have never used any other kind of activation on this machine. Thanks. V.