Which is the Best Choice :

There are four network locations:

Choose Home network for home networks or when you know and trust the people and devices on the network. Computers on a home network can belong to a homegroup. Network discovery is turned on for home networks, which allows you to see other computers and devices on the network and allows other network users to see your computer. For more information, see What is network discovery?

Choose Work network for small office or other workplace networks. Network discovery, which allows you to see other computers and devices on a network and allows other network users to see your computer, is on by default, but you can't create or join a homegroup. For more information, see What is network discovery?

Choose Public network for networks in public places (such as coffee shops or airports). This location is designed to keep your computer from being visible to other computers around you and to help protect your computer from any malicious software from the Internet. HomeGroup is not available on public networks, and network discovery is turned off. You should also choose this option if you're connected directly to the Internet without using a router, or if you have a mobile broadband connection.

The Domain network location is used for domain networks such as those at enterprise workplaces. This type of network location is controlled by your network administrator and can't be selected or changed.

Note
If you know you won’t need to share files or printers, the safest choice is public network. (????)

This is within Windows OS...!