Check that your computer supports dual displays
Identify the available video ports on your computer and monitors
Get the correct cables or adapters for the ports you have
Connect the first monitor to the computer
Connect the second monitor to the computer
Turn on both monitors
Turn on the computer
Open display settings on your computer
Detect both monitors if they do not appear automatically
Choose the display mode you want
Extend the display across both monitors
Arrange the monitor positions to match their physical placement
Set the main display if needed
Adjust resolution and scaling for each monitor
Apply the changes
Test mouse movement and window placement across both screens