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# Enable Telnet on Windows 10
- URL: https://attackoftech.net/enable-telnet-on-windows-10/
- Published: 2020-04-24T15:00:00.000Z
- Updated: 2026-01-16T15:41:59.000Z
- Author: Patrick Hinson
- Tags: How To's, Software, Windows

Oddly enough, this does not occur frequently, but there have been instances when I needed the Windows native Telnet client for testing purposes. I have used it to see if a port is open from a given client. This is another simple how-to. 

# What is Needed:

1. Windows.
2. Possibly an internet connection.

# The Fun:

With elevated permissions open a command prompt execute the following command:

```batch
dism /online /Enable-Feature /FeatureName:TelnetClient
```

This will install the native Telnet client.

![2020-04-23-16_45_45-Window](https://attackoftech.net/content/images/2020/04/2020-04-23-16_45_45-Window.png)

Once this is installed it is simple to use. For example if I wanted to see if 443 was open on a given device.

```batch
telnet 10.2.3.4 443 
```

How you know that the port is open is when it does not fail like below:

![2020-04-23-16_54_14-Window](https://attackoftech.net/content/images/2020/04/2020-04-23-16_54_14-Window.png)

# Conclusion:

This is not a complicated one but it is still useful. Even though Putty and other SSH clients are out there and they can telnet. In my experience they have issues when what you are testing will not respond correctly to the telnet session. Even though I would not recommend using telnet to configure any device it still has its uses in todays world.