I installed ISA 2000 on a Windows 2003 machine which has already WSUS3.0 installed. I then decided to remove ISA for some reason. After ISA got uninstalled and system rebooted, WSUS service doesn't work. When I start the console, it syas it can not connect to the WSUS server. I hope it's all about starting some services which ISA had stoped during uninstallation. However, I'd be happy if I can reinstall WSUS3.0 without intacting data files.