Because your Product ID is an "OEM" ID, which means that HP must provide the
support you need, not Microsoft. HP bought the copy of Windows that came
with your PC at a significant discount and in return contracted with
Microsoft to provide support for that copy of Windows.
--
Richard G. Harper [MVP Shell/User]
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http://www.dts-l.org/goodpost.htm
"David" <> wrote in message
news:C3CC5394-AFBC-4499-BBE9-...
>I recently purchased a HP PC with Vista Home Premium. I obtained the
>Product
> ID # and submitted that to MS Support. The response came back that the
> number was invalid. I checked and am keying-in the correct number. Why
> doesn't MS Support recognize my Product ID #? Thanks, David