Recently i had bought a new Compaq Presario laptop, on which i had install Windows Vista home premium with the correct product key. Now just few days back when i tried to turn on my pc, it showed me error message on the desktop screen stating that the product key seems to be invalid one. Then i tried to re-enter the product key but it showed me that key seems to be invalid, and shows the following "0xc004F050" error on the desktop screen. Can any body tell me that how do i get rid of the above issue? Kindly provide me the correct logical solution for the above issue.
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