ja det er produkt kode
det er sku da ikke noget med Serial at gøre er det ikke selve CD keyen han snakker om her ?
Måske er dette løsningen !
Det er taget fra hvis man sidder med en warez version af XP eller noget i den stil og skal installere XP men princippet må være det samme da det jo er CD keyen der skal skiftes
0. Run a system resore to create a new checkpoint in case you need it.
1. Run regedit and go to: HKey_Local_Machine\Software\Microsoft\WindowsNT\Current Version\WPAEvents, on the right double click on "oobetimer" and change at least one digit of this value to deactivate windows.
2. Choose run from start menu and type in this command: %systemroot%\system32\oobe\msoobe.exe /a to get the activation screen and go to the second option which is activate by phone.
3. In the new screen choose the option to change product key, and type in the new product key (your Corporate one only).
3a. If it brings you back to the prior screen after entering the new key click remind me later and then reboot.
4. Close that window, reboot your system and enter the command in step 2 for the second time to verify your activation , you should see "windows is already activated".
5. If you have done this wrong or without a valid key you will not be able to boot. hit F8 and select last known good configuration
Kilde :
www.windowsxp.nu