Force windows 7 to use Wired LAN connections over wifi connections

I noticed on my Windows 7 pc that the pc connects to WiFi even when connected by a wired LAN. This causes some inconveniences, so I had to find how to turn it of.
To make sure windows 7 prefers LAN, follow these steps :

• Open the control panel
• Click Network and Internet
• Network and Sharing Center
• (left) Change Adapter Settings
• Hold the Alt key to make the menus appear and click Advanced
• Click Advanced settings
• On the Adapters and Binding tabs :
• Select the Local Area Connection (names might differ)
• Push the up arrow next to the list until the Local Area Connection is first in the list

Now just click OK and close all opened screens. Reboot might be needed.