Connect the second monitor to your computer using the correct cable
Turn on the second monitor
Open your computer’s display settings
Detect the second monitor if it does not appear automatically
Choose how you want the screens to work
Select Extend to use both screens as one large workspace
Select Duplicate to show the same content on both screens
Adjust the screen order to match the physical setup
Set the main display if needed
Adjust resolution and scaling for each screen
Apply the changes
Test moving windows between both screens
Save the settings if prompted