SP-1 or SP-2 will not install with certain illegal keys but Windows
Update will still function.
Check the settings:
Right click My Computer
Click Properties
Click Automatic Update tab.
Make selections as desired.
Also see:
http://www3.telus.net/dandemar/invalpk.htm
--
Jupiter Jones [MVP]
http://www3.telus.net/dandemar/
"The repair man" <The repair
> wrote in
message news:7ACD9680-74C3-4853-BDAA-...
> Would an invalid licence key for XP stop Windows Upade from working
> ?
>
> If so, how do I switch WU back on after the licence key has been
> changed for
> a new valid key ?