Open Programs & Features
1. Step In the Control Panel click on “Programs and Features”:
If you want to display the Control Panel as a menu on the Start menu, you should read this guide:
How to customize Windows 7 Start Menu
Turning Windows Features on or off
2. Step Next, you will see the entry Turn Windows features on or off, click on it:
Enable Telnet Client in Windows 7
3. Scroll down the list until you find the entry “Telnet Client” and check that option:
Confirm with “Ok”.
Accessing Telnet via Command Prompt
Now you can access telnet via the command line utility.
Enter telnet to start the telnet utility in Windows 7:
Establish a telnet connection to your server, enter open hostname.com port: