Change "Windows XP" Serial key

How to Change "Windows XP" Serial key

1. Go to run and write REGEDIT.

2. and go @

HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWSNT\CURRENT VERSION\WPAEVENTS registry key.

3. Change the value OOBETimer

4. Go to run and write

%systemroot%\system32\oobe\msoobe.exe /a

5. Click the Change Product Key button.

6. Type your new "Windows XP" product key in the text box and click the Update button.