Can anyone give me some feedback, about the Windows Genuine Advantage Update, I'm not familiar with it?

Answer 1

Windows Genuine Advantage (WGA) is a controversial anti-piracy program enacted by Microsoft that requires users of Microsoft Windows to validate the authenticity of their copy of several recent Microsoft operating systems when accessing several Microsoft Windows services, such as Windows Update, and downloading from the Microsoft Download Center. It also advertises Service Pack 2 of Windows XP, which requires manual intervention to disable. Previously voluntary, it became mandatory for use of these services in July 2005.

As of late March 2007, WGA was installing through Windows "Updates" with no identification of the name of the program until it was installed. Note that third-party firewalls can be used to block WGA ("WGATRAY.EXE"), apparently without problems.

Answer 2

^^^^
what he said. If you're not using a legal copy of windows DONT DOWNLOAD IT!...i know from experience