Make XP genuine - No download necessary

For some reasons this method might not work!!! If you want guaranteed working method  then read this article Make Windows XP Genuine---but download is necessary.
* Right click your desktop and select new text document.
* Open that document and paste the following info.

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion]
"CurrentBuild"="1.511.1 () (Obsolete data - do not use)"
"ProductId"="55274-640-1011873-23081"
"DigitalProductId"=hex:a4,00,00,00,03,00,00,00,35,35,32,37,34,2d,36,34,30,2d,\
31,30,31,31,38,37,33,2d,32,33,30,38,31,00,2e,00,00,00,41,32,32,2d,30,30,30,\
30,31,00,00,00,00,00,00,00,86,56,4e,4c,21,1b,2b,6a,a3,78,8e,8f,98,5c,00,00,\
00,00,00,00,dd,da,47,41,cc,6b,06,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
00,00,00,00,00,00,00,00,00,00,00,38,31,30,32,36,00,00,00,00,00,00,00,b5,16,\
00,00,83,83,1f,38,f8,01,00,00,f5,1c,00,00,00,00,00,00,00,00,00,00,00,00,00,\
00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,66,e5,70,f3
"LicenseInfo"=hex:33,b7,21,c1,e5,e7,cd,4b,fd,7c,c6,35,51,fd,52,57,17,86,3e,18,\
d3,f4,8c,8e,35,32,7b,d1,43,8d,61,38,60,a4,ca,55,c9,9a,35,17,46,7a,4f,91,fc,\
4a,d9,db,64,5c,c4,e2,0f,34,f3,ea

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\WPAEvents]
"OOBETimer"=hex:ff,d5,71,d6,8b,6a,8d,6f,d5,33,93,fd

* In notepad click then File->Save
* For file type in the save dialog box select "all files" and for the file name type in License Key.reg or whatever you want. It doesn't matter as long as it has the .reg extension.
* Click save.
* Double click the file that's now on your desktop. It will ask you are you sure. Tell it yes.

* To see that it worked go to
Code:
http://www.microsoft.com/genuine/downloads/FAQ.aspx


and click on "Validate Windows" over on the right