Error Messege Recieved When trying to install Defender

I am using a legitimate copy of windows XP SP1 which I have updated to SP2.
This is the second time I have installed this operating system on this
computer because of a hard drive issue, and did not have this problem last
time. However when I try to install defender it gives me this messege on the
progress bar page. " To install this software, you?need to?obtain a? valid
Windows product key. Contact Microsoft Product Support Services using the
options provided on the Microsoft Help and Support website. " I have already
tried redownloading the program, but I get the same messege

There's some support for the WGA process--here's a link.

http://support.microsoft.com/oas/de...aspx?Gprid=9860


The only other person I've referred said they wouldn't help him because he
had an OEM version of Windows (as, of course, many people do)--but it may be
worth trying.

--

"SammyG" <SammyG@discussions.microsoft.com> wrote in message
news6E7E978-71BA-49F5-97F7-31946567EA22@microsoft.com...
>I ran thourgh the diagnostic tests and came up with a single problem in the
> security options. I made the required changes then returned to
> microsoft's
> website to download defender and try to install. I still recieved the
> same
> messege which resulted in a failed installation.
>
>
> "Engel" wrote:
>
>> Hello Sammy,
>>
>> Test this WGA diagnose test, connection to MS, that scripts working and a
>> new Validation tool
>> http://www.microsoft.com/genuine/diag/
>>
>> I hope this post is helpful.
>> Let us know how it works ºut.
>> ??ç?l
>>
>>
>> "SammyG" wrote:
>>
>> > I am using a legitimate copy of windows XP SP1 which I have updated to
>> > SP2.
>> > This is the second time I have installed this operating system on this
>> > computer because of a hard drive issue, and did not have this problem
>> > last
>> > time. However when I try to install defender it gives me this messege
>> > on the
>> > progress bar page. " To install this software, you?need to?obtain a?
>> > valid
>> > Windows product key. Contact Microsoft Product Support Services using
>> > the
>> > options provided on the Microsoft Help and Support website. " I have
>> > already
>> > tried redownloading the program, but I get the same messege