XP Update SP 1 & 2 Not working

[Guest]

I am having trouble installing my SP 1 & 2 update packs. This comp was
purchased preowned through a friend. The server or otherwise is telling me
that my Version is not valid even though I have certificate etc. My question
lies therein : How do i get these update packets to properly install and/or
how can I switch the user information on my certificate?

 

[Guest]

Kristopher;
Does this apply:
http://www3.telus.net/dandemar/invalpk.htm
If not post back the exact error message.

-- having trouble finding wpae folder in this page of instructions. Otherwise The exact message is : Invalid Certificate: Windows was unable to install update SP1.

 

[Guest]

"Cert is 55274-640-0000356-23474

 

[Jupiter Jones [MVP]]

That is on the list as a blocked key.
It seems your friend has a stolen Windows XP Pro license installed on the
computer.
Contact the friend for the source of Windows XP and perhaps they can get
yours legitimate.
Otherwise you need to buy Windows XP Pro to keep your current data and
settings.
See the link in my other post for options.