Does Microsoft offers an online validation process that allows us to verify that our copy of Windows is genuine or not. What we have to do, to request a genuine Windows download from the Microsoft Download Center. replies needed. thanks in advance.
Microsoft only has Authentication for Windows XP and Vista. If you do a Windows Update, it will prompt you to install the Windows Genuine Advantage plug-ins which would install and check your Windows License. Alternatively, you can do it at http://www.microsoft.com/genuine/downloads/WhyValidate.aspx
get WGA as mentioned by eddy. It will do a check and will validate your windows automatically (if its actually valid).
Most updates or downloads from Microsoft.com will trigger the Windows Genuine Advantage (WGA) thing anyway.