I'm trying to use: sc config Telnet start= auto but I get: [SC] OpenService FAILED 1060: The specified service does not exist as an installed service. Why? I can see the service in the services list? is there a nother way of doing the same?

Hello, Try using sc config TlntSvr start= auto OR Start -> Run -> type services.msc and find the Telnet server. Right click it and choose Properties. There will be a drop-down list and you can choose Automatic.