Remove Microsoft xp genuine notification

1  Launch Windows Task Manager (“Processes”) and leave it open.  
2  Meanwhile, go to C:\Windows\System32 and find WgaTray.exe
3  Right-click on it and then click to delete WgaTray.exe but leave the deletion confirmation box open.
4  Go back to Windows Task Manager and find wgatray.exe to end the process.
5  Click “End Process”, and when you are prompted for a confirmation to terminate the process, align the “End Process” confirmation box with the previous “Delete File” confirmation box, or at least have them close together (because you need to do both actions quickly - at least within 2 or 3 seconds).
6  Press ‘Yes’ on the Task Manager prompt (to “end the process”) and then quickly press ‘Yes’ on the deletion confirmation (to delete the actual file). You’ll need to repeat this if you miss it.
7  If you think you did this successfully, launch Registry Editor (Start > Run > regedit).
8  Browse to the following location: "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify".  
9   Delete the folder WgaLogon and all its contents.  
10  Reboot Windows XP.