Under the 'Select and rearrange displays' section, select the monitor that you want to adjust.To select the correct scale setting that suits your requirements, use these steps:

Or, if you have a 4K display, for example, adjusting the scale settings can help to make items bigger and more readable. Windows 10 includes settings to adjust the scaling, which are useful when setting up various monitors of different sizes and screen resolutions to make text, apps, and other items look the same size across the displays. However, depending on your requirements, you may need to adjust scaling, resolution, and orientation for each monitor. When connecting one or multiple displays to a computer, Windows 10 does a pretty good job detecting and configuring the most optimal settings. How to adjust displays scale and layout on Windows 10 In the case that you're still having problems, reset their connections (or restart the computer), and try the Detect button again. If one of the monitors isn't showing up, make sure it's receiving power and connected correctly, and click the Detect button.

If you're not sure which monitor you're selecting, click the Identify button to figure out. 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. Source: Windows Central (Image credit: Source: Windows Central)

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