I needed to test a Exim mail server from my Windows 7 laptop a little while ago and was surprised when I typed telnet I received an error. The error indicated that the telnet client was not installed on my laptop which seemed odd since I have Windows 7 Ultimate. I assume that telnet in general is being phased out of most operating systems in general however it is a great tool for troubleshooting. After a little digging around in the Windows Programs Control Panel I was able to easily install telnet. Follow the directions below to install telnet on your Windows 7 computer.

Error Attempting To Use Telnet On Windows 7:

Telnet Is Not Recognized As An Internal Or External Command

Telnet Error Text:

'telnet' is not recognized as an internal or external command, operable program or batch file.

Enable Telnet Client On Windows 7 Computer:

  1. Windows 7 Control Panel: First launch the Windows 7 Control Panel, which is displayed in the example image below, by clicking the Windows Start Menu icon and selecting Control Panel from the pop up navigation.

    Windows 7 Control Panel

  2. Programs And Features: In the Control Panel double click on Programs and Features to launch the W7 Programs and Features Control Panel as displayed in the below example image.

    Windows 7 Programs and Features

  3. Turn Windows Features On or Off: Now in the left navigation bar click on the “Turn Windows Features On or Off” link which will launch the Windows Features configuration window similar to the example displayed below.

    Windows 7: Windows Features Configuration Window

  4. Enable Telnet Client: From the Windows Features configuration window put a check mark next to the Telnet Client application as shown below.

    Windows Features: Enable Telnet Client

    Once you have added the check next to Telnet Client click the OK button from the Windows Features configuration window. Next close the Programs and Features window and wait for the below message to complete while Windows 7 to installs the Telnet Client.

    Wait While Windows Makes Changes To Features

  5. Test Telnet On Windows 7: Once Windows finishes installing the Telnet Client open a Command Prompt window by typing “cmd” in the bottom of the Windows Start Menu within the “Search programs and files” box and then click Enter. Then in the Command Prompt window type telnet which should launch the Telnet Client as shown in the below image.

    Windows 7 Telnet Client

Telnet will now always be enabled on your Windows 7 computer unless you remove it from the Windows Features configuration window.


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54 Responses to “Windows 7: Telnet Is Not Recognized As An Internal Or External Command”
  1. SATYA says:

    thanks…. helped me!!!

    [Reply]

    alex Reply:

    Hello SATYA,

    No problem. Thanks for taking the time to leave feedback.

    Thanks.
    alex

    [Reply]

  2. KP says:

    Hey thanks man. I was totally unaware of this feature. Hopefully now I will be able to use telnet to send commands to my wireless routher. Thanks again.

    [Reply]

    alex Reply:

    Hello KP,

    No problem. Thanks for posting feedback.

    Thanks.
    alex

    [Reply]

  3. TG3 says:

    Thanks for this, I had no clue it was phased out of Windows 7. Thought I had something set up wrong on the machine.

    [Reply]

    alex Reply:

    Hello TG3,

    No problem. Thanks for taking the time to leave feedback.

    Thanks.
    alex

    [Reply]

  4. mary says:

    this was really helpful ,
    cheers for this mate ,

    mary from australia

    [Reply]

    alex Reply:

    Hello mary,

    Great! Cheers right back atcha!

    Thanks.
    alex (Louisville, KY, USA) :)

    [Reply]

  5. vipul sareen says:

    Thanks Alex,

    It was a great help. It helped in testing my connectivity and resolving issues .
    Thanks a lot, keep posting articles like this.

    [Reply]

    alex Reply:

    Hello vipul sareen,

    No problem. Thank you for taking the time to leave feedback and thanks for the encouragement! We definitely plan to continue writing articles.

    Thanks.
    alex

    [Reply]

  6. Anz.. says:

    Thanks a lot Alex for this little bit of info (with screen snapshots), it really helped me a lot. Wasn’t aware that they made it optional in W7.
    Cheers!

    [Reply]

    alex Reply:

    Hello Anz..,

    No problem. Thanks for taking the time to leave feedback.

    Thanks.
    alex

    [Reply]

  7. mgogo says:

    thanks i works, @@@hongera@@@

    [Reply]

    alex Reply:

    Hello mgogo,

    No problem. Thanks for posting feedback.

    Thanks.
    alex

    [Reply]

  8. Babar says:

    Thanks buddy it helps me alot :)

    [Reply]

    alex Reply:

    Hello Babar,

    No problem. Thanks for taking the time to leave feedback.

    Thanks.
    alex

    [Reply]

  9. mohsen haghgoo says:

    Hello to All

    Thanks a Lot !!!!

    [Reply]

    alex Reply:

    Hello mohsen,

    Hello to you! No problem… Thanks for posting feedback.

    Thanks.
    alex

    [Reply]

  10. mbalag says:

    Thanks… working fine.. telnet enabled

    [Reply]

    alex Reply:

    Hello mbalag,

    No problem. Thanks for taking the time to leave feedback.

    Thanks.
    alex

    [Reply]

  11. arpit says:

    problem not solved…..

    [Reply]

    alex Reply:

    Hello arpit,

    What version of Windows 7 do you have installed? Were you able to get this issue resolved? If you were able to get it resolved let us know what the solution was and if not post more details and we can attempt to assist.

    Thanks.
    alex

    [Reply]

  12. RMN says:

    Thank you for posting this guide!

    [Reply]

    alex Reply:

    Hello RMN,

    No problem. Thanks for taking the time to leave feedback.

    Thanks.
    alex

    [Reply]

  13. silas says:

    thank you…problem solved

    [Reply]

    alex Reply:

    Hello silas,

    No problem. Thanks for posting feedback.

    Thanks.
    alex

    [Reply]

  14. mehmood says:

    my window 7 is not showing telnet option what should i do to switch on this service and y it is not diplaying i faloow the complete procedure but i am not able to see in the list . plz help me any expert here

    [Reply]

    Arshad Reply:

    Kindly check your version of windows 7

    [Reply]

    alex Reply:

    Hello Arshad,

    Thanks for taking the time to leave a suggestion to mehmood.

    Thanks.
    alex

    [Reply]

  15. stwidgie says:

    Perfect! Thank you!

    [Reply]

    alex Reply:

    Hello stwidgie,

    No problem! Thanks for taking the time to leave feedback.

    Thanks.
    alex

    [Reply]

  16. puteri says:

    guddd!!it’s work on my pc

    [Reply]

    alex Reply:

    Hello puteri,

    No problem. Thanks for posting feedback.

    Thanks.
    alex

    [Reply]

  17. ahmad says:

    thanks alot

    [Reply]

    alex Reply:

    Hello ahmad,

    No problem. Thanks for taking the time to leave feedback.

    Thanks.
    alex

    [Reply]

  18. saurabh chetri says:

    If I check telnet client in windows features option in my windows 7 I get “An error has occured.Not all of the features were successfully changed”.I tried pkgmgr /iu:TelnetClient this one as wel but could turn on telnet.Please reply me with full rpocedure by sending me mail.

    [Reply]

    alex Reply:

    Hello saurabh,

    We offer these articles to provide informational howtos for free not to offer personal support to each person so you won’t be getting an email direct from us other than the automated one sent when a reply to your message is posted. As for it not working on your computer I would check the Windows 7 version and other than that it should work without issue.

    Thanks.
    alex

    [Reply]

  19. Yogesh says:

    Thanks a lot!

    [Reply]

    alex Reply:

    Hello Yogesh,

    No problem. Thanks for taking the time to leave feedback.

    Thanks.
    alex

    [Reply]

  20. Adam says:

    Thank you, solved my problem.

    [Reply]

    alex Reply:

    Hello Adam,

    No problem. Thanks for posting feedback.

    Thanks.
    alex

    [Reply]

  21. sai says:

    thanks it worked out for me…

    [Reply]

    alex Reply:

    Hello sai,

    No problem. Thanks for taking the time to leave feedback.

    Thanks.
    alex

    [Reply]

  22. asem says:

    hey alex
    i did that and also after doing it the same message appear when i used to type the commenad telnet !! what can i do please help

    [Reply]

    alex Reply:

    Hello asem,

    Not sure then. It would sound like you are using a user that does not have admin privileges. You might try rebooting to make sure the changes take effect.

    Thanks.
    alex

    [Reply]

  23. Swift says:

    Thanks. It actually did solved the problem

    [Reply]

  24. gotham says:

    dud u rok

    [Reply]

  25. CMD says:

    Thanks dude!

    I had no idea this was disabled by default, you probably just saved me a load of time and effort.

    CMD

    [Reply]

  26. satar says:

    Thanks Man! I am a Unix Admin and I need to telnet to my UNIX boxes as I like it better than other applications.

    Also, I grew up in Henderson, KY now living in sunny Southern California. I miss the people of Kentucky and the brick streets of downtown Louisville.

    Regards,
    Satar

    [Reply]

    alex Reply:

    Hello Satar,

    No worries at all. I lived out west for awhile myself! There is a lot of cool stuff going on in Louisville tech wise so if you are interested in ever coming back let me know and I can put you in contact with some people. In fact look me up on LinkedIn (Alex Kah). I get contacted all the time about Unix/Linux gigs in the area and some of which are paying impressive salaries for Louisville. I really thought it was going to be difficult living back here (moved back because of getting married/kids) but it has been awesome being back.

    Thanks.
    Alex

    [Reply]

  27. Ryan says:

    hi. mine is windows 7 gaming edition. i dont have an option or box to click on. there is no option for telnet. what do i need to do pls help me

    [Reply]

  28. Doug says:

    Thanks – on site trying to update some PLC firmware. Got stopped by my laptop no recognising telnet. Fixed it in a few minutes thanks to this guide.

    [Reply]

  29.  
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