Sometimes the use of "telnet" is needed to help troubleshoot issues. If telnet is not installed you get an error saying telnet is not found.
Run the following command from the command prompt. This is a quick and easy way to install telnet without having to track it down in the windows "add remove programs".
Open a command prompt window. E.g. Click Start, type cmd in the Start Search box, and then press ENTER.
Type the following command in the command window:
Dism /Online /Enable-Feature /FeatureName:TelnetClient