In windows, If you want to share a internet connection on one or more systems then it is easy and very much possible. These are the steps you should perform :
1) Goto Network and Sharing Center .
2) Now click on Setup a new connection or network.
3) Now click on the wireless and hoc (computer-to-computer) network. Then it will ask the name for this network and authentication type. Security key is asked in this step. Give the Security key and then you will be asked to enable the Internet Connection or not.
Click on this button and now your network has been established. Simply connect to this network and after connecting, other users can connect to this network and access the internet connection by using the same security key.
Enjoy 🙂
Hrushikesh Zadgaonkar 