How To Change The Serial Number Used In Windows XP

In this article i will show you a Trick to change the serial number of window XP.which is also valid for XP corporat.
For this you would have to follow some basic steps.if you know this then it's great,if you don't know then lets dive into it.

How To Do This.

1.Open Start/Run... and type the command:
regedit and click "OK" (or press ENTER).

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.

Click "OK" and close the Registry Editor.

2.Open Start/Run... and type the command:
%systemroot%\system32\oobe\msoobe.exe /a and click "OK" (or press ENTER).

This will bring up the "Activate Windows" window.

Check the option for "Yes, I want to telephone a customer service representative to activate Windows" and click "Next"

3.Then click "Change Product Key" (don't enter any information on that screen)

4.Type in the new key and click "Update"
 
The activate Windows by phone window will reappear at this point, just close it by clicking the X in the upper right hand corner

5.Reboot your system and Open Start/Run... and type the command:

%systemroot%\system32\oobe\msoobe.exe /a and click "OK" (or press ENTER).

If you see "Windows is already activated" then everything is OK.



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