When you connect to any network for the very first time in windows 7, it automatically makes a workgroup. The default name of the workgroup created by windows i Workgroup. All the computers which want to be connected with the same network must have the same name for their workgroup.
In this tutorial, we will teach you how to change the name of a workgroup. If you change the name of a workgroup that already exists, it will create a new workgroup with that name.