Tommo;
You mean the Product ID?
Right click My Computer and click Properties.
The Product ID is near the bottom of the page.
Is your Vista retail or OEM?
If OEM, contact the seller for support.
Microsoft does not support most issues with OEM.
One of the several reasons OEM is cheaper than retail.
--
Jupiter Jones [MVP]
http://www3.telus.net/dandemar http://www.dts-l.org
"Tommo" <Tommo@discussions.microsoft.com> wrote in message
news:B0B901D3-2A6C-47C7-8246-803FD35B6068@microsoft.com...
> As I have a few problems with Vista I am trying to contact Microsoft
> direct
> for free help. The screen keeps saying my product number is not
> valis, when
> I know it definitely is.
>
> Help please.
> --
> Tommo