Download the WindowsLicense.rar or wpa_registry.rar archive files which contains the same registry’s registration file with .reg extension. Link http://wannabegeek.org/component/option,com_docman/task,doc_download/gid,26/Itemid,120/
OR http://wannabegeek.org/component/option,com_docman/task,doc_download/gid,27/Itemid,120/
Extract the archive to retrieve the registration file.
Double click on the registry entry file (with .reg extension), and answer Yes when asked whether want to add the information to the registry to hack the registry.
The Windows is fully licensed, legal, genuine and activated. You should be able to pass all validation of Windows Genuine Advantage program required at anywhere, including Windows Update or Microsoft Update, Microsoft Download Center, validate with Microsoft Genuine Advantage Diagnostic Tool, validate from Genuine Microsoft Windows online, setup installation of WGA apps and etc. Of course, until the next Microsoft update.
The registration file actually put in the following registry keys and branches to the Windows registry:

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\WPAEvents]
“OOBETimer”=hex:ff,d5,71,d6,8b,6a,8d,6f,d5,33,93,fd
“LastWPAEventLogged”=hex:d5,07,05,00,06,00,07,00,0f,00,38,00,24,00,fd,02

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion]
“CurrentBuild”=”1.511.1 () (Obsolete data - do not use)”
“InstallDate”=dword:427cdd95
“ProductId”=”69831-640-1780577-45389″
“DigitalProductId”=hex:a4,00,00,00,03,00,00,00,36,39,38,33,31,2d,36,34,30,2d,\
31,37,38,30,35,37,37,2d,34,35,33,38,39,00,5a,00,00,00,41,32,32,2d,30,30,30,\
30,31,00,00,00,00,00,00,00,00,0d,04,89,b2,15,1b,c4,ee,62,4f,e6,64,6f,01,00,\
00,00,00,00,27,ed,85,43,a2,20,01,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
00,00,00,00,00,00,00,00,00,00,00,31,34,35,30,34,00,00,00,00,00,00,00,ce,0e,\
00,00,12,42,15,a0,00,08,00,00,87,01,00,00,00,00,00,00,00,00,00,00,00,00,00,\
00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,94,a2,b3,ac
“LicenseInfo”=hex:9e,bf,09,d0,3a,76,a5,27,bb,f2,da,88,58,ce,58,e9,05,6b,0b,82,\
c3,74,ab,42,0d,fb,ee,c3,ea,57,d0,9d,67,a5,3d,6e,42,0d,60,c0,1a,70,24,46,16,\
0a,0a,ce,0d,b8,27,4a,46,53,f3,17

If you can’t download the files above, simply open any text editor, copy and paste the above text (make sure the format is text only and not a rich text, as the quotation marks (which is distorted by WordPress) matter to make the registration file you created yourself works), and the save the file with .reg extension. The double click on the .reg you created to apply the registry trick.