The first step, if you go directly to a service item in the Control Panel's management tool to find Telnet, is futile.
Because there is no such service by default. Of course, you can do it the following way. "Control Panel" a "program" "Turn on or off Windows features", in which you can see a number of service items, choose Telnet Server and Telnet client to determine. So you can go back to "service" or services.msc and you'll see Telnet.
The second step, through the "Control Panel"--〉 "Management tools" one "service" or "services.msc into the service list, if you find Telnet, you can see that it is disabled, and you need to right-click" Disable "and change" Disable "to" manual ". Then start the status bar and then right-click to select Start.
With the above 2 steps, you can start by using the Telnet service. Hey, that's good!