How to set up dual monitors on a Windows computer.
Plug your monitor(s) in to an available slot on your graphics card or motherboard.
The connection will likely be either VGA, DVI, HDMI or DisplayPort.
Plug the power cable into the back of the monitor and then the other end into an available plug socket.
Turn the monitor on.
Turn the computer on.
On the computer, click the windows icon (4 squares) in the bottom left corner of your screen, you will see the start menu appear. When it comes up click or search for “Settings”.
Click “System” then “Display”.
In here you can amend the resolution and the position of the monitors.
Likely the setting you want enabled is at the bottom under Multiple displays, set to Extend these displays.