Changing Serial Number Win XP Pros Without having to re-instal.

1. Select;Choose the Run from Start Menu type the Regedit >> HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWSNT\CURRENT Version\Wpaevents
column right side click the " oobetimer " and change or vanish the last digit.

2. Step into the run again this to but type the "
% systemroot%\system32\oobe\msoobe.exe / a " to get the activation appearance, afterwards select;choose the second opdon that is activation of by phone.

3. Afterwards select;choose the opdon for the fox of CD Key and write the new cd key 4. Close this application and restart the computer 5. Walke the again like no >>>> " Windows Is already activated"