Changing Windows XP Product Key without Re-Installation

Hi friends now i am going to show you when windows genuine notificaion is show in u r pc just change the key instead of reinstall.

 

steps to change key:

1. Goto start menu, run, type regedit
2. In registry editor goto

HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENT VERSION\WPA EVENTS

3. In the right panel open OOBE Timer
4. Edit/Change atleast one entry there, press OK and close registry editor.
5. In run type the following command

%systemroot%\system32\oobe\msoobe /a

and press enter
6. Activation wizard appears
7. Select activation by phone and in the next screen select the option CHANGE PRODUCT KEY, enter a valid corporate product key, press OK and close the wizard
8. Reboot the computer and type the same command in the Run
9. Activation wizard appears again and it shows the message WINDOWS IS ALREADY ACTIVATED.

Note : Another simple way is download the "magicjelly key finder" software  and change the key .