Connecting a monitor to your laptop. Find the correct cable and port.
Next, dual-monitor, which screen is where? Any order would work but having the physical location match the logical location set on the computer is a next option.
Step 1. Right click any blank space on the desk top background > click display settings
Step 2. Under the “Select and rearrange displays” section, drag and drop each display to rearrange them according to their physical layout on your desktop.
(If you’re not sure which monitor you’re selecting, click the Identify button to figure out.)
Step 3. Click the Apply button.
Once you complete the steps, Windows 10 will save the physical layout, and you’ll be able to work across each display and run apps without issues.