Just found it out and wish it can help

CCLEANER -> http://www.filehippo.com/download_ccleaner
優化registry file

WinASO RegDefrag -> http://www.winaso.com/
重組registry file

need to install one or both?

Thank you for your help !!

Install both, run cclean then registry defrag

Windows Genuine Advantage Notifications is a program that helps Microsoft fight software piracy and helps you validate that the copy of Microsoft Windows XP installed on your computer is genuine and properly licensed.

By confirming that your copy of Windows XP is genuine, you can take advantage of all the capabilities, support, and continuous improvements—as well as the peace of mind—that come with using genuine Windows. If your copy is not genuine, WGA Notifications will provide periodic reminders to help you take the appropriate action. It's part of Microsoft's commitment to fight software counterfeiting and help you avoid problems before they happen.

When i updata my window, the above message pop out.
Should i install it if my microsoft office is not genuine ?

It is ok for me to install RegDefrag version 1.2 b but not the latest version?
Because the latest version is only a trial version.

I want to cry already ~ the problem happen again !!

My computer sometime can shut down properly, sometime can't !
It usually can't shut down properly after I online, why?

this is a WGA -> means microsoft want to detect your windows is legal version or not.

For RegDefrag -> this verion I'm using and no fault found

happen again .... even update all the patches from microsoft? then format and reinstall is the way you can do.

For update, have to install WGA?

if you're using legal version then you must install WGA before get any update patched from microsoft, otherwise need to find some crack

I'm using legal version windows and I have cancelled the installation of WGA yesterday.

I have try to update again but when I open the windows update from program, it will pop out a website and I can't open it because it get on loading and nothing display on that page.