Answer:
1) Start→Control Panel→View Network Status.
2) Click the Connect to a Network link.
3) Locate the VPN you want to connect to and click its name and then click the Connect button.
The button only appears after you click the name of the network.
To disconnect from a network, click the network name in this dialog box and then click the Disconnect button. Click Disconnect when prompted and then click Close.
4) Enter your network security key.
Most VPNs require a security key. It’s the same one you used to establish the connection.
Select the Hide Characters check box if you want to keep the Key hidden.
5) Click OK and then click the Connect button.
Windows 7 will use the key to establish a connection to the VPN network.