How to use Telnet on PC?

Telnet is a user command and an underlying TCP/IP protocol for accessing remote computers. Through Telnet, an administrator or another user can access someone else's computer remotely.

Please following the access.
1.Start -->run -> appwiz.cpl and then press Enter
2.And Then it will pop up  Program and Feature --> click on Turn Window Feature On and OF.
3.Find Telnet and click Tick and then Click OK.
4.It will be OK.
5.Restart the PC if it still not work.