I am trying to update my home premium vista (KB873917) (KB9717137) and i keep getting the error: code 80070490, my laptop had already been installed with vista when i bought it so i dont have the vista cd
I did a little research and found a similar, if not the same, problem from a couple years back. It appars that there has been some corruption to the permissions in the registry. Here is a link to the post. http://social.msdn.microsoft.com/forums/en-US/windowscompatibility/thread/c75ae899-d05b-411d-a7f2-00fdd33b8589/ Look for a very detailed message from 'Gary Bouchard'. He puts down some very specific steps that appear to have worked for most everyone that had the issue. Make sure you look at the next post by Georgio as well. I would read through most of this post before trying anything so you can get a good feel for the issue and what worked for people.
Please let us know if this resolves your issue!Mark
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