How to enable ethernet connection in Windows 11?

In Windows 11, I primarily use ethernet connection. I accidentally right clicked and disabled it from network connections window. Now I can't see the option to enable it back on again.

First thing to try is to look in Device Manager and see if you can re-enable the LAN adapter.

However in a comment, you said the LAN adapter did not show up in Device Manager.

Second thing then is to look in the Manufacturer's support site for the LAN driver ( go to the web site for the PC manufacturer, enter your model number, and look for the LAN driver), download it and install the LAN driver. Be sure to restart.

Third thing, if reinstalling LAN driver does not work, is to consider there may be a hardware issue.

In this latter case, get a USB LAN Adapter with drivers for your machine and use that for Ethernet.