The new windows Genuine advantage tool is annoying. It’s a new tool that Microsoft released for Windows XP with it’s latest security updates. Whenever computer start it open a Windows Genuine Advantage Installation wizard.Here is how you completely remove it:
1) After windows starts, press Ctrl + Alt + Delete to open up the Task Manager
2) Click on the “processes” tab and find the “WGASetup.exe” process and right-click it and select “End Process Tree”
3) Click Start -> All Programs -> Accessories -> System Tools -> Scheduled Tasks
4) Delete the “WGASetup” task.
5) Delete the following folder: “C:\WINDOWS\system32\KB905474″
6) Restart Windows.

May 27, 2010 @ 20:16:34
Very good advice. I say more; when the WGASetup has not found its place in system for good yet, you only need to remove ii from “scheduled tasks” – see point 3.
Jul 15, 2010 @ 11:48:08
Great! Thanks a lot! Worked smoothly
Aug 05, 2010 @ 17:59:38
Oh thanks for the advise.
Actually there are two kind of problems:
1. like this one that in the phase of wga setup.
2. the wga logon.
if you are just in the aerly stage – wga setup – please follow this article..
and if you are on the second stage, please try other advice on Google..
Jan 23, 2011 @ 04:26:50
THANK YOU.
FLAWLESS.
LEARNED SOMETHING NEW TODAY.
Dec 01, 2011 @ 05:50:07
It worked for me as well.