When doing Windows Update, I get prompted to install the Windows Genuine Advantage Validation Tool (KB892130). After triggering the install, it does its normal thing for 15 seconds or so, and then tells me that the install was unsuccessful. No reason is given, and when I look at my update history, no "failed install" is logged. I have Win 2000. I tried shutting down my anti-virus and firewall programs. Any help is appreciated.