Is there telnet client/server in Windows 10?

Presently Telnet Server is not implemented on Windows 10. Telnet Client is installed but not enabled. Most probably it is deprecated as was done for the latest server.
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Telnet server deprecated use remote desktop
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TELecommunication NETwork protocol is an unsecured (username/password is in text, not encrypted) network protocol and its use will be prejudicial to security on local networks as well as Internet.
It was still available in Windows 7. Follow these threads (1, 2) for Installing
Telnet Client and Telent Server on Windows 7.

Telnet client is installed but not enabled on Windows 10 and you need to
enable it. You can go this directory to access telnet.exe on Windows 10.
C:\Windows\System32\telnet.exe. Presently it is used to connect to remote servers
at.

Enabling the client on Windows 10:

Here are screen shot(s) to enable Telnet Client on Windows 10 and test it.

This is how your Windows Features accessible from Control Panel |
Programs | Programs and Features | Turn Windows Features On or Off
appears when telnet client is enabled. When not its not enabled there is no check mark:

telnet1.png

Place check-mark for Telnet Client (if not checked) and click OK.

You can now test the client as shown using command line:
C:\WINDOWS\system32>telnet
You get the following response:
Welcome to Microsoft Telnet Client
Escape Character is 'CTRL+]'
Microsoft Telnet>

You get the help now using the following command:
Microsoft Telnet>help /?
The response will be:
Commands may be abbreviated. Supported commands are:
c    - close                    close current connection
d    - display                  display operating parameters
o    - open hostname [port]     connect to hostname (default port 23).
q    - quit                     exit telnet
set  - set                      set options (type 'set ?' for a list)
sen  - send                     send strings to server
st   - status                   print status information
u    - unset                    unset options (type 'unset ?' for a
list)
?/h  - help                     print help information

How do you connect to Windows 10 remotely?

In order to do this you need to enable Remote Desktop Access on your WIndows 10 computer. It is easy and works OK. It is a very useful feature and provides lot of flexibility.

In this scenario I am connecting to Windows 10 on my laptop remotely from my Windows 7 (x64) Professional on my P775 Toshiba Satellite computer.

Click Start on Windows 7 and locate the item Remote Desktop Connection at the very top (could be different in yours, look for it).

 

Click on it to open the following (you may need to click on Options at the bottom:

RDT01.png

Enter the name of the computer (XXXXXXX) here and place checkmark for 'Allow me to save credentials' and click OK.

Windows Security page opens asking for credentials. Enter your password and click OK.

RDT02

You get a message to 1) Turn on the remote computer and 2) Enable remote access on that computer.
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Now go to the Windows 10 computer and open the Control Panel and locate System Properties and click open the Remote tab as shown.

RDT-Win10_01

Place check mark for Allow remote connections to this computer and click OK.
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//You may get the following  message, just click OK and Apply/OK on the previous screen.
Come back to your Windows 7 computer and enter the credentials again and this time you may  this certificate related message.

RDT03.png

Clicking on View Certificate opens the following page with three tabs as shown. Some details of the above are here:
Certificate | General:

RDT04.png

 

Certificate | Details:

 

RDT05
Certification Path

RDT06
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Just click Yes on the main message about certificate.
Voila! you have successfully established your cnnection to the remove desktop.

RDT07

 

Here is a clearer screen showing the taskbar on Windows 10. Note that you can only see the desktop sans shortcuts.

RDT08

Now If I go and do something on my Windows 10 then the remote connection will be lsot as shown.

RDT09

How can I access my desktop/laptop from another computer?

Before you can access your computer remotely[[it is assumed that the computers are connected or networked] you need to enable it. The figure shows how you may do it in the SYSTEM folder [Remote tab]in the Control Panel (Windows XP). Place a check mark for Allow users to connect remotely to this computer.



This is a neat way to work with two computers at the same time from one set of keyboard, mouse and monitor. You can copy and paste from most files, especially if they use the same program. For example you can copy contents of Notepad from one computer[this is the local] and paste it into the other [this is the remote]. It helps you to keep the monitor display color different so that you don't get confused between the local and the remote.

Added: May 22 2008

Additionally you may also need to enable this in the firewall as an exception as shown in the next figure. By default this is not enabled. Place a check mark for the Remote Desktop and click OK.

Once enabled you go to the other computer and establish a remote connection as described in

http://hodentekhelp.blogspot.com/2008/05/how-do-you-change-computer-time-on.html