很少有人在 PC 上一次只执行一项任务。我们中的大多数人已经成长为熟练的多任务处理者，并且喜欢同时处理多个项目。无论是在完成作业的同时听音乐，还是打开多个浏览器选项卡以在(browser tabs)Word中编写报告。创意(Creative)人员和专业游戏玩家将多任务处理提升到了一个全新的水平，并且在任何给定时间都打开了数量惊人的应用程序/窗口。对他们来说，通常的多窗口设置(setup doesn)并不能很好地完成这项工作，这就是他们将多台显示器连接到计算机的原因。
主要由游戏玩家普及，多显示器设置(multi-monitor setups)已在全球范围内变得相当普遍。但是，了解如何在多个显示器之间快速切换以及如何在它们之间划分内容对于获得多显示器设置的实际好处至关重要。
幸运的是，在 Windows 中更改或切换主屏幕和辅助屏幕非常容易，并且可以在一分钟内完成。我们将在本文中讨论相同的内容。
如何在 Windows 10 上更改主要和次要显示器(How to Change the Primary & Secondary Monitor on Windows 10)
根据您在个人计算机上运行的Windows 版本(Windows version)，切换显示器的过程会略有不同。这听起来可能不寻常，但仍然有大量运行Windows 7的计算机。不过，以下是在(Nevertheless)Windows 7和Windows 10上切换显示器的过程。
更改Windows 7上的主要和次要监视器(Primary & Secondary Monitor)
1.右键单击(Right-click )桌面上的空白/负空间。
2. 从随后的选项菜单中，单击屏幕分辨率(Screen Resolution)。
3. 在以下窗口中，连接到主计算机的每台显示器都将显示为一个蓝色矩形，在“更改显示器的外观(Change the appearance of your display)”部分下方中心处有一个数字。
中间有数字 1(number 1)的蓝色屏幕/矩形代表您目前的主要显示器/显示器。只需(Simply)单击(click on the monitor icon)您想要作为主显示器的显示器图标。
4. 选中/勾选“将此作为我的主显示器”(tick the box next to ‘Make this my main display’)（或将此设备用作其他版本的Windows 7中的主显示器）选项旁边的框，该选项与“高级设置”(Advanced Settings)一致。
5. 最后，点击Apply切换您的主显示器，然后点击Ok退出。
另请阅读：(Also Read:) 修复(Fix Second Monitor)Windows 10中未检测到(Detected)第二个监视器
(Switch Primary & Secondary Monitor)在Windows 10上(Windows 10)切换主要和次要显示器
在Windows 10(Windows 10)上更改主显示器和辅助显示器的过程大部分与Windows 7相同。虽然，为了避免混淆，一些选项已被重命名，但以下是在Windows 10(Windows 10)中切换显示器的分步指南：
1.右键单击(Right-click)桌面上的空白区域并选择显示设置( Display settings)。
或者，单击开始按钮(start button)（或按Windows 键(Windows key)+ S），键入Display Settings，然后在搜索结果返回时按 Enter 。(press enter)
2. 与Windows 7类似，您连接到主计算机的所有显示器都将以蓝色矩形的形式显示，并且主显示器的中心将带有数字1(number 1)。
单击要设置为主显示器的rectangle/screen
3. 向下滚动窗口以找到“将此作为我的主显示(Make this my main display)”并选中它旁边的框。
如果您无法选中“将此作为我的主显示器”旁边的框，或者(Make)如果它显示为灰色，那么您尝试设置为主显示器的显示器很可能已经是您的主显示器。(the monitor you are trying to set as your primary display is already your primary display.)
此外，请确保您的所有显示器都已扩展。“扩展这些显示器(Extend these displays)”功能/选项可以在“显示设置”内的“(Display Settings)多(Multiple)显示器”部分下找到。该功能允许用户将其中一台显示器设置为主显示器；如果未启用该功能(feature isn)，则所有连接的显示器都将被同等对待。By extending the display, you can open different programs on each screen/monitor.
多个(Multiple)显示下拉菜单中包含的其他选项是 –复制这些显示和仅在…上显示(Duplicate these displays and Show only on…)
很明显，选择复制这些显示器选项将在您连接的两个或所有显示器上显示相同的内容。另一方面，选择Show only on ... 将仅在相应的屏幕上显示内容。
或者，您可以按键盘组合(keyboard combination) Windows key + P打开项目侧菜单(project side-menu)。从菜单中，您可以选择您喜欢的屏幕选项(screen option)，无论是复制 Windows 10 上的屏幕(duplicate the screens on Windows 10)还是扩展它们。
通过Nvidia 控制面板(Nvidia Control Panel)切换显示器
有时，安装在我们个人计算机上的图形软件会抵消由Windows 显示设置(Windows Display Settings)进行的显示器之间的切换。如果是这种情况，并且您无法使用上述过程切换显示器，请尝试通过图形软件切换显示器。以下是使用(Below)NVIDIA 控制面板(NVIDIA Control Panel)切换显示器的步骤。
1. 单击任务栏上的NVIDIA 控制面板图标(NVIDIA Control Panel icon)将其打开。（它通常是隐藏的，可以通过单击显示(Show)隐藏图标箭头找到）。
虽然，如果任务栏上没有(t present)图标(icon isn)，您将不得不通过控制面板(control panel)访问它。
按键盘上的Windows 键(Windows key)+ R启动运行命令(launch the Run command)。在文本框中，键入 control 或 control panel(type control or control panel)并按enter(press enter)打开Control Panel。找到NVIDIA 控制面板(NVIDIA Control Panel)并双击它打开（或右键单击并选择打开）。为了更轻松地查找NVIDIA 控制面板(NVIDIA Control Panel)，请根据您的喜好将图标的大小切换为大或小。
2.打开NVIDIA 控制面板窗口(NVIDIA Control Panel window)后，双击左侧面板中的显示( Display)以打开子项目/设置列表。
3. 在显示下，选择设置多个显示器。(Set up multiple displays.)
4. 在右侧面板中，您将在“选择(Select)要使用的显示器”标签下看到所有已连接显示器/显示器的列表。
注意：(Note:)标有星号 (*)的监视器编号当前是您的主要监视器。(monitor number)
5. 要更改主显示器，请右键单击(right-click on the display number)要用作主显示器的显示器编号，然后选择(display and select) Make primary。
6. 单击应用(Apply )保存所有更改，然后单击是(Yes )确认您的操作。
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我们希望您能够非常轻松地在Windows上更改您的主要和次要显示器。(Windows)让我们知道您如何以及为什么使用下面的多显示器设置。
How to Change the Primary & Secondary Monitor on Windows
It is quite rare to see a person performing only a single task at a time on a PC. Most of us have grown into proficient multitaskers and lіke wоrking on mυltiple projects at a single time. Be it listening to music while getting your homework done or opening multiple browser tabs to write your report in Word. Creative personnel and professional gamers take the multitasking deed to a whole another level and have an unperceivable number of applications/windows open at any given time. For them, the usual multi-window setup doesn’t quite do the job and that’s why they have multiple monitors hooked to their computer.
Popularised primarily by gamers, multi-monitor setups have become quite common around the globe. However, knowing how to quickly switch between multiple monitors and how to divide the content among them is vital to reap the actual benefits of having a multi-monitor setup.
Fortunately, changing or switching between a primary and secondary screen in windows is quite easy and can be accomplished well under a minute. We will be discussing the same in this article.
How to Change the Primary & Secondary Monitor on Windows 10
The procedure to switch monitors is slightly different depending on the Windows version you have running on your personal computer. It may sound unusual but there are still a healthy number of computers out there that run Windows 7. Nevertheless, below is the procedure to switch monitors on Windows 7 and Windows 10.
Change the Primary & Secondary Monitor On Windows 7
1. Right-click on an empty/negative space on your desktop.
2. From the ensuing options menu, click on Screen Resolution.
3. In the following window, every monitor connected to the main computer will be displayed as a blue rectangle with a number at its center under the ‘Change the appearance of your display’ section.
The blue screen/rectangle that has the number 1 at its centre represents your primary display/monitor at the moment. Simply, click on the monitor icon you would like to make your primary display.
4. Check/tick the box next to ‘Make this my main display’ (or Use this device as the primary monitor in other versions of Windows 7) option found in line with Advanced Settings.
5. Finally, click on Apply to switch your primary monitor and then click on Ok to exit.
Also Read: Fix Second Monitor Not Detected in Windows 10
Switch Primary & Secondary Monitor on Windows 10
The procedure to change the primary & secondary monitor on Windows 10 is the same for the most part as in Windows 7. Although, a couple of options have been renamed and to avoid any confusion, below is the step-by-step guide to switching monitors in Windows 10:
1. Right-click on an empty area on your desktop and choose Display settings.
Alternatively, click on the start button (or press Windows key + S), type Display Settings, and press enter when the search results return.
2. Similar to Windows 7, all the monitors you have connected to your main computer will be displayed in the form of blue rectangles and the primary monitor will bear the number 1 at its center.
Click on the rectangle/screen you would like to set as your primary display.
3. Scroll down the window to find ‘Make this my main display’ and check the box next to it.
If you aren’t able to check the box next to ‘Make this my main display’ or if it is greyed out, chances are, the monitor you are trying to set as your primary display is already your primary display.
Also, ensure that all your displays are extended. The ‘Extend these displays’ feature/option can be found under Multiple displays section inside Display Settings. The feature allows the user to set one of the monitors as the primary display; if the feature isn’t enabled, all your connected monitors will be treated the same. By extending the display, you can open different programs on each screen/monitor.
Other options included in the Multiple displays drop-down menu are – Duplicate these displays and Show only on…
As obvious, selecting the duplicate these displays option will display the same content on both or all the monitors you have connected. On the other hand, selecting Show only on … will show the content only on the corresponding screen.
Alternatively, you can press the keyboard combination Windows key + P to open the project side-menu. From the menu, you can select your preferred screen option, whether it is to duplicate the screens on Windows 10 or extend them.
Switch Monitors through Nvidia Control Panel
Sometimes, the graphics software installed on our personal computers counters the switch between monitors made from the Windows Display Settings. If that’s the case and you weren’t able to switch monitors using the above procedure, try switching monitors through the graphics software. Below is the procedure for switching displays using the NVIDIA Control Panel.
1. Click on the NVIDIA Control Panel icon on your taskbar to open it. (It’s often hidden and can be found by clicking on the Show hidden icons arrow).
Although, if the icon isn’t present on the taskbar, you will have to access it through the control panel.
Press Windows key + R on your keyboard to launch the Run command. In the text box, type control or control panel and press enter to open the Control Panel. Locate the NVIDIA Control Panel and double-click on it to open (or right-click and select open). To make looking for NVIDIA Control Panel easier, switch the size of the icons to large or small depending on your preference.
2. Once the NVIDIA Control Panel window has opened, double-click on Display in the left panel to open the list of sub-items/settings.
3. Under Display, select Set up multiple displays.
4. In the right-panel, you will see a list of all the connected monitors/displays under the ‘Select the displays you want to use’ label.
Note: The monitor number marked with an asterisk (*) is currently your primary monitor.
5. To change the primary display, right-click on the display number you wish to use as the primary display and select Make primary.
6. Click on Apply to save all the changes and then on Yes to confirm your action.
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We hope you were able to change your primary & secondary monitor on Windows quite easily. Let us know how and why do you use a multi-monitor setup below.
