Validate XP with new genuine CD

I have bought a CD of Widows XP that is genuine to upgrade my PC that has
winxp that will not validate. How do I install the genuine Winxp over the non
genuine XP,
Can I just change the key or product code?

Try the Windows Product Key Update Tool:
http://www.microsoft.com/genuine/sel...tructions.aspx
If that does not work:
Perform a Repair Installation using the valid key and new CD:
http://www3.telus.net/dandemar/repaxp.htm

Also see:
http://www3.telus.net/dandemar/invalpk.htm

--
Jupiter Jones [MVP]
http://www3.telus.net/dandemar
http://www.dts-l.org


"Golfwhisky" <> wrote in message
news:C5AD10C3-459E-4299-9DB4-...
>I have bought a CD of Widows XP that is genuine to upgrade my PC that has
> winxp that will not validate. How do I install the genuine Winxp over the
> non
> genuine XP,
> Can I just change the key or product code?