There are many reasons why you might want to piece of work with multiple monitors. Information technology can exist invaluable for productivity on desktop, allowing you to work with several applications at the same time. You might as well want to indistinguishable your screen to meet what information technology looks like on a different resolution brandish. Two screen will be plenty for productivity in most cases, but y'all may want to extend this to three for gaming, provided your automobile can handle it.

Windows makes this pretty easy to fix, and we'll show you how it'south done.

How to duplicate the screen in Windows

When you lot first connect a second monitor, Windows should notice 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 paradigm on the 2d screen, look for a function primal on the peak 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 case) and it should toggle through the diverse configurations: laptop brandish only, laptop + external screen, external screen simply.

Yous can also effort pressing the Windows primal and P at the same time for the same consequence.

How to duplicate screen on multiple monitors

If you lot still have no prototype and your 2d screen is displaying "No betoken" then effort selecting a dissimilar input as it might not automatically select the i you're using. Y'all'll accept to cheque your monitor or projector'south manual to find out how to practise that if information technology's non obvious from the available buttons and menus.

If all else fails, go to the desktop on Windows 10, right click and choose Display Settings (you tin can also access this by from System in the Settings bill of fare). If you see just 1 screen in the drib-down Display listing, attempt clicking the Detect button to strength Windows to scan for the second screen. In Windows 10, gyre downwardly until you run into Multiple Displays and click the Detect button.

How to duplicate screens in Windows

How to configure multiple screens in Windows

When all screens are detected, yous can cull how Windows uses them.

If you want to duplicate the screens and have the same image on both, brand sure 'Duplicate these displays' is selected in the Multiple displays driblet-down bill of fare. It'southward much the same in both Windows 8 and x.

How to duplicate screen on multiple monitors

In Windows x, yous won't encounter the Resolution setting. This has been moved to 'Advanced' so you accept to click 'Avant-garde display settings' to come across the drop-down menu.

It's worth noting that duplicating displays is frequently a compromise if your screens have different resolutions or aspect ratios. For instance, if yous hook upwards a 1024x768 projector to a laptop with a 1366x768 screen, both will run at 1024x768, and yous'll end up with blackness confined on the left and right on your laptop screen.

Here'due south how to connect two displays to a laptop via DisplayPort

How to extend the desktop across multiple monitors

If y'all're not using a projector, which is when it makes about sense to duplicate the screen, then you probably desire to extend the desktop to accept different things on each screen.

To do that, simply cull 'Extend these displays' instead of 'Duplicate these displays'.

How to duplicate screen on multiple monitors

You can select a monitor in the diagram at the top and drag it to the position information technology'south in on your desk-bound. Here we've put the second monitor on the left of the laptop considering it defaults to the correct. You can move the smaller screen upwardly and down, likewise. This affects where your mouse cursor can cross the screens.

You lot'll too notice yous tin select different resolutions for each screen, but yous much select each screen in turn. Simply one of the monitors tin can be your main monitor, but information technology doesn't matter which: you cull past clicking on the screen in the diagram and so checking the box next to 'Make this my main screen'.

In Windows 7, that ways information technology will be the simply monitor with a task bar and start push button. In Windows eight and 10, you become those on all screens, but only the notification area and clock on the main screen.You'll get a task bar and first buttons on all screens in Windows viii and x, but the notification area and clock volition only exist visible on the chief screen, Windows 7 previously just put the job bar and start push on the main screen, but it has since been discontinued.

Here's how to enable 2560x1440 resolution on a monitor via HDMI and how to connect a 4K screen to a PC.