The following is a step by step process as to how you can use wireless internet without taking out your ethernet cable out.

1. Open Network and Sharing Centre.
2. Go to change Adapter Settings.
3. Goto properties of Local Area Network.
4. Click on Internet Protocol version 4 and go to it’s properties.
5. Click on Advanced
6. You will see a block checked there by the name of “Automatic Metric”.
7. Uncheck it and then enter 2 in that section.
8. Now, Do the same for the wireless network but enter 1.

Save the setting and you’ll be able to use wifi even when your ethernet cable is connected to the LAN.