HomeGroup makes it easy to share your libraries and printers on a home network. You can share pictures, music, videos, documents, and printers with other people in your homegroup. The homegroup is protected with a password, and you'll always be able to choose what you share with the group.
This list can help you get started with HomeGroup.
Join a homegroup
Add computers to a homegroup
Share libraries with your homegroup
Keep specific files and folders from being shared with a homegroup
Access files and printers on other homegroup computers
Where can I find my homegroup password?
Leave a homegroup
Video: Sharing files with HomeGroup