In Microsoft Windows, you can find settings that control how the notebook behaves when the lid closes. You can change these settings in the Power Options:

• Select Settings – System - Power & sleep
• Select "Additional power settings"
• Go to “Choose what closing the lid does"
• Select "Do nothing”

In Mac OS please take the following steps:

• Your MacBook must be connected to the power supply
• A mouse and keyboard must be connected
• A monitor must be connected