Windows 7 is now connecting your computer to the network.
You don't need to do anything here. Everything is automatic.
Note: If Windows 7 detects another computer on your network running Windows 7 that also has a homegroup setup, you will be prompted to choose what kinds of files you'd like to share on that homegroup and for the homegroup password. You can enter this information or Skip the setup entirely.
I do not show this additional screen in this guide.