Telnet is a client-server protocol, based on reliable connection-oriented transport. Telnet is the method that allows connection to a remote computer over the Internet and using programs and data as if they were on your local machine. User data is distributed in-band with Telnet control information in an 8-bit byte data connection over the TCP (Transmission Control Protocol (TCP) port number 23) where a Telnet server application (telnetd) is listening. For how to install Telnet via the GUI, please visit the following link.
Kindly refer to these guides on similar articles on Telnet, “Error: Telnet is not recognized as an internal or external command” and “Telnet Error: Could not open a connection to the host, on the port, connect failed“.
Run the below command from the Command Prompt (CMD) or PowerShell to install Telnet
dism /online /Enable-Feature /FeatureName:TelnetClient
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