I want to change Product key for windows xp service pack 2.

good day,
actually your product key is located in your cd cover, in case you miss place your cd cover, insert you cd" then click explore,then start to open each folder and look for you product mostly they appear on read me document...

regards,
kaybicks

i want xp product key

Hello,
You dont need a product key for Service Pack 3 to upgrade from service pack 2.
You can simply download an official copy of Service Pack 3 for Windows XP from Microsoft's downloads center.

Follow the download link to download Service Pack 3, then install it.
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http://www.microsoft.com/downloads/details.aspx?FamilyId=5B33B5A8-5E76-401F-BE08-1E1555D4F3D4&displaylang=en
Thank you for using Fixya,
Kenneth.

The Service Pack alone does not have a product key as such. It is an update for those that are running Genuine Microsoft XP.

If you mean Windows XP with Service Pack 2, then you need to purchase it from a reputable source such as Microsoft or a Microsoft authorised Vendor.

The product key is on the folder in which the genuine software disk was shipped to the buyer. MS Service Packs do not change the key nor should they require you to reinstall the key.
You have a pirated version of XP software and even with a key it will not pass Microsoft validation. It will be quickly disabled by Microsoft and you'll be left with a black screen.
You need to get a valid copy of the software.

in sp3 not need window key ya but in xp service pack 2 you need this is the key and it will defenetly work because its master key (RHKG3-8YW4W-4RHJG-83M4Y-7X9GW)ENJOY BUDDY

A service pack upgrade for Windows does not require a new product key. The original key that you supplied when you first activated the software remains the same.

You get 2 product keys one of them when you purchase the original Windows OS and the second one with your computer so look for a sticker that has the name of your operating system on it and then you can use that product key as well.

Hi There, do the following

click on Start, Run
Type regedit
browse to the following...

1. HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\Current Version\WPAEvents registry key.
2. Click on the WPAEvents folder.
   
3. In the results that appear in the window on the right, locate OOBETimer.
   
4. Right-click on the OOBETimer entry and choose Modify from the resulting menu.
   
5. Change at least one digit in the Value data text box and click OK. This will deactivate Windows XP.
   
6. Click on Start and then Run.
   
7. In the text box in the Run window, type the following command and click OK.
   %systemroot%\system32\oobe\msoobe.exe /a
   
8. When the Windows Product Activation window appears, choose Yes, I want to telephone a customer service representative to activate Windows and then click Next.
   
9. Click Change Product Key.
   
10. Type your new, valid Windows XP product key in the New key text boxes and then click Update.
    
11. If you're taken back to the previous screen and prompted, choose Remind me later.
    
12. Restart your PC.
    
13. 
    
14. you can then activate you're windows with the new key
    
15. Good luck
    

Please take some time and rate my level of service, thx

Regards
Techmor

That is true for most all service packs. Some Upgrades, especially if the upgrade is a Major one, and changes the first number of the version of the software (eg 3.01 to 4.0) those may cost ya, but minor revisions (eg 3.01 to 3.25) should be free and without keys.