You may be a victim of software counterfeiting antidote (personally verified method 2)

From: http://hi.baidu.com/vincentma/blog/item/e554bb3451baa4b3d0a2d328.html

 

It is estimated that the windows ie update with rising was completed in the previous days before the MS darts were completed. I was very careful with Microsoft's darts, but I did not expect it to be as written on an old friend's blog: if people are floating in the rivers and lakes, how can they survive ~ -- What should I do if the system uses the MS dart?

OK. Here are two common solutions on the Internet:

1. Force Delete Method

1. Find HKEY_LOCAL_MACHINE/software/Microsoft/Windows NT/Winlogon/notify in the Registry and delete Winlogon.

2. Restart the machine and delete wgatray.exe in C:/Windows/system 32, and then restart.

2. Camouflage Verification Method

Change the XP serial number and go to the official certification to make it genuine.
1. Change the serial number:
Download the attachment and run it,
Click to download this file

After running, a prompt is displayed. For example, if the CD-key is successfully replaced
Official certification:
Http://www.microsoft.com/genuine/downloads/SuccessfulActivation.aspx? Displaylang = ZH-CN & error = 0 & sguid = 168d7233-9ed8-499f-ae80-c96c43f2fcef
The connection must be completely copied to the address bar for running.