Change power options

To change your power options as follows:

Click on the Start Menu
Search for "Control Panel" and click "Open"
Go to System and Security > Power Options
In the list of options on the left side, click "Choose what closing the lid does"
Click on the dropdown menu next to "When I close the lid" and under "Plugged in"
Select "Do nothing"
At the bottom of the window, click "Save changes"
You can now close the Control Panel