The Telnet Client is a great tool for developers and administrators to help manage and test network connectivity. However, the Telnet Client application is disabled by default in Microsoft Windows 10. Attempts to use it before activation returns the error message ’not recognized as an internal or external command, operable program or batch file’.

Enabling The Telnet Client

  1. Right-click the Start button and select Programs and Features.
  2. Click Turn Windows features on or off from the left-hand menu.
  3. The Windows Features dialog box appears. Scroll down and select Telnet Client. Click OK.
  4. The Telnet Client installations begins.
  5. Once complete, a success message appears.
  6. Click Close. There’s no need to restart your computer.

Verifying The Install

  1. Launch the Command Prompt by typing Command Prompt into the search box on the menu bar and clicking the app returned.
  2. Alternatively, you can also type Windows Key + R to open the Run command dialog. Type cmd and hit the Enter key.
  3. Type telnet and hit Enter to access the Telnet Client.
  4. Type help to see the supported Telnet commands.
  5. Type q or quit to exit Telnet.
  6. Type telnet 80 to Telnet into Google on port 80.

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