reg key on win xp wont work

  ray197222 02:21 10 Sep 04
Locked

uppdated ram and changed my hard drive

  the Rascal 06:31 10 Sep 04

Your product activation key want work since you have upgraded your pc ??,If so it could be because you have changed your hardware and you will have to phone microsoft for a new product key.
If thats not what you meant please give some more information on what you mean by "reg key want work".
About the product key click here

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