To configure TCP/IP for dynamic addressing
Open Network Connections
Right-click the network connection that you want to configure, and then click Properties.
On the General tab (for a local area connection) or the Networking tab (all other connections), click the Internet Protocol (TCP/IP) component, and then click Properties.
Click Obtain an IP address automatically, and then click OK.
To open Network Connections, click Start, click Control Panel, click Network and Internet Connections, and then click Network Connections.
You must be logged on as an administrator or a member of the Administrators group in order to complete this procedure. If your computer is connected to a network, network policy settings may also prevent you from completing this procedure.
These instructions are only required if a static TCP/IP configuration was previously used. By default, Windows attempts to obtain the TCP/IP configuration from a DHCP server on your network.