The hosts file is a vital file built into Windows. Its purpose is to convert IP addresses to host names, much like DNS would. This can be useful in pointing an individual PC to a specific server where DNS may point it elsewhere.

For example, normally would point to, however you may want it to point to on only one PC. You could use a host file entry to point this one PC to

This guide will show you how you can easily edit the host file on your Windows machine