How to duplicate screen on multiple monitors

There are many reasons why you might want to work with multiple monitors. It can be invaluable for productivity on desktop, allowing you to work with several applications at the same time. You might also want to duplicate your screen to see what it looks like on a different resolution display. Two screen will be plenty for productivity in most cases, but you may want to extend this to three for gaming, provided your machine can handle it. 

Windows makes this pretty easy to set up, and we\’ll show you how it\’s done. 

How to duplicate the screen in Windows

When you first connect a second monitor, Windows should detect it and automatically shows the screen on both displays. This is the case regardless of whether you have a PC with two monitors or a laptop with a screen or projector attached.

If you don’t see an image on the second screen, look for a function key on the top row of keys on your laptop which shows two monitors. Press the Fn key and the appropriate function key (F5 on the laptop below, for example) and it should toggle through the various configurations: laptop display only, laptop + external screen, external screen only.

You can also try pressing the Windows key and P at the same time for the same effect.

How to duplicate screen on multiple monitors

You can select a monitor in the diagram at the top and drag it to the position it’s in on your desk. Here we’ve put the second monitor on the left of the laptop because it defaults to the right. You can move the smaller screen up and down, too. This affects where your mouse cursor can cross the screens.

You’ll also notice you can select different resolutions for each screen, but you much select each screen in turn. Only one of the monitors can be your main monitor, but it doesn\’t matter which: you choose by clicking on the screen in the diagram and then checking the box next to \’Make this my main screen\’.

In Windows 7, that means it will be the only monitor with a task bar and start button. In Windows 8 and 10, you get those on all screens, but only the notification area and clock on the main screen.You\’ll get a task bar and start buttons on all screens in Windows 8 and 10, but the notification area and clock will only be visible on the main screen, Windows 7 previously only put the task bar and start button on the main screen, but it has since been discontinued. 

Here\’s how to enable 2560×1440 resolution on a monitor via HDMI and how to connect a 4K screen to a PC.

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