type
home group in the start menu search box and click on
choose home group and sharing options **If all computers on your home network are running Windows 7, create a homegroup
By far, the easiest way to set up file and printer sharing on a home network is to create a homegroup. A homegroup links computers on your network so that you can share pictures, music, videos, documents, and printers. You can help protect a homegroup with a password, and you'll always be able to choose what you share with the group. If all of the computers that you want to network are running Windows 7, creating a homegroup is the recommended method.
HomeGroup is available in all editions of Windows 7. In Windows 7 Starter and Windows 7 Home Basic, you can join a homegroup, but you can’t create one.
the guide while you set the home group up explains as you do it. if you use all windows 7 on the machines its easy
http://windows.microsoft.com/en-US/w...dows#section_1 **quote from microsoft