Doug;
The key may not be valid.
See if this answers the question:
http://www3.telus.net/dandemar/invalpk.htm

If the key is invalid, contact the shop since they are selling stolen
licenses.

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


"Doug Hamilton" wrote in message
...
I'm trying to install WinXP SP2 on Win XP Pro, but the installatiuon
always fails with "Invalid version of windows...".
The PC was bought new in a computer shop. How can I get a valid key into
the system. The PC has worked for several months so the key itself must
be valid, I guess.
What options do I have. If I can't get satisfaction from the PC shop, can
I buy an upgrade and somehow install the key from it, or do I have to
re-install?

Doug