make Windows XP GENUINE using notepad !

This is a guide for persons who have an OEM version of Windows XP Professional that came with their PC, and don't have a copy of the CD, lost the CD or their serial Number has been compromised, and Microsoft Genuine Advantage website reports it as not genuine.

This happens in many cases where generic PC manufacturers use volume licenses for the Windows XP version they install on the PC or use the same Installation on multiple PCs they sell to you.
I am in no way sanctioning piracy of software.
Also as the old disclaimer goes, this is strictly for educational purposes only and I am in no way responsible for how any individual or group uses this information.

The process takes only about 5 minutes excluding download time for the software.

1. Download MGADiag.exe from Microsoft's website for the main purpose of testing after all the steps that your copy of Windows XP is genuine.

2. Download WGAPluginInstall.exe form Microsoft's web site

3. Make sure that after installation you delete or rename the data.dat file in the Windows Genuine Advantage folder.
You can find the file in the location C:\Documents and Settings\All Users\Application Data\Windows Genuine Advantage\data where C: is drive of the Windows XP installation.

4. Next go to C:\Windows\System32\drivers\etc\ directory, and you will find the 'hosts' file, open it using Notepad or any other text editor and add the line below to the end of the file.

127.0.0.1 mpa.one.microsoft.com

5. Run MGAdiag.exe to see if your copy of Windows XP is now genuine. If your XP is genuine , MGAdiag.exe shows a window as shown below :

*Please Note I have only tested this on Windows XP Professional with
Service Pack 2 installed.