Right click anywhere on your Desktop then click Display settings | |
Click Identify to understand what order the monitors are inWhen you click Identify, each monitor will display a number so you can understand how Windows has the monitors configured. | |
Rearrange monitors if necessaryYou may need to rearrange your monitors. For example in the screenshot below we are moving the monitor labeled 1 so that is on the left side of monitor 2. Click and drag your mouse to rearrange the monitors. | |
Configure monitor to Extend desktopSelect the monitor by clicking on the corresponding number then scroll down and make sure Extend desktop is selected |