Microsoft’s “Windows Defender” has, apparently, also gone gold. You can download it, assuming you have
a validated copy of Windows, here.
Windows Defender is designed to “protect against pop-ups, slow performance, and security threats caused
by spyware and other unwanted software. It features Real-Time Protection, a monitoring
system that recommends actions against spyware when it’s detected and
minimizes interruptions and helps you stay productive. Now with 2 free
support incidents for Windows XP and Windows Server 2003.”