If you couldn’t find your Windows product keys, this little program WinGuggle helps you in recovering your product keys from the windows installation. WinGuggle can recover and Windows XP, Vista and Windows 7 product keys along with Office 2007 product key.
WinGuggle is self executable file, download the application, unzip it and launch the application. It will display the product keys of the windows installation and Office. It also allows you to change OEM logo and other information if you would prefer that.
WinGuggle is a freeware works with Windows XP, Vista and Windows 7 and requires .NET framework for Windows XP.