This tutorial describes how to setup your IP address automatically. You can use this guide if you have a computer that has been using a manually placed IP address. These are the steps:
Step 1: go to start.
Step 2: Click/Open control panel.
Step 4: In the top left of the Network and Sharing Center page Click/Open change adapter setting
Step 5: In this page you can set IP automatically on either Local Area Connection or Wireless Network Connection. In this case we will set Local Are Connection. Right Click Local Area Connection and click/open properties.
In this page you will see something like this.
Step 7: Change the setting and choose obtain an IP address automatically like this. Click OK.
There you have it you have just set-up your IP address to be automatically obtained from ISP. To know your obtained IP address just look at the ip checker of this site.