How to Download Windows Genuine Advantage Tool
Windows Genuine Advantage tool checks your Windows installation to make sure it is a genuine copy. You will need to download this tool, and run it, if you are receiving a prompt from Windows during Windows updates, or if you receive a message on the Windows website while trying to download software. Windows will prompt you for this tool if you have never run it before, or if it detects an issue with your license of the operating system. If your copy is not a pirated copy, meaning that it is not counterfeited illegally and is genuine, then you will be able to download all the new updates and features through Windows Updates for your Windows operating system.
Go to the link in Resources below title "WGA tool."
Download this tool by pressing "download" on the web page.
Save the file to a location of your choosing.
Double-click the downloaded program to start running the tool. Once running, it will validate your Windows installation as genuine or not.