Windows的一大优点是它允许您自定义几乎所有您想要的东西。这包括修改Windows中的(Windows)默认电源(default power)计划，以便它们更好地满足您的需求。这意味着您可以配置诸如Windows 笔记本电脑或平板电脑何时变暗(Windows laptop or tablet dims)或关闭其屏幕（在一段时间不活动后）、当您离开它后何时进入睡眠状态，或者在使用电池运行时自动调整屏幕亮度(screen brightness)，以节省更多电力。以下是您可以执行所有这些操作的方法：
注意：(NOTE: )本指南涵盖Windows 10、Windows 7 和 Windows 8.1。
如何访问有功电源计划的基本设置(power plan)
您必须首先访问活动电源计划(power plan)的基本设置。如果您不知道如何操作，请阅读本指南：在Windows中访问(Windows)电源计划(power plan)的 9 种方法。
但是，如果您赶时间，可以在任何Windows 版本(Windows version)中使用的方法之一是右键单击（或点击并按住）(tap and hold)系统托盘(system tray)中的小电池图标(battery icon)，然后选择“电源选项”。("Power Options.")
这将打开一个名为“电源选项”("Power Options.")的窗口。在其中，单击或点击当前选择的电源计划(power plan)旁边的“更改计划设置”("Change plan settings")。
打开电源计划(power plan)基本设置后，您可以开始根据需要调整它们。
设置(Set)一段时间不活动后显示器变暗的速度（仅在Windows 7中）
此功能仅在您使用Windows 7时可用。如果您使用的是Windows 10或Windows 8.1，则不可用。“编辑计划设置”("Edit Plan Settings")窗口中的第一个设置称为“调暗显示”。("Dim the display.") 单击(Click)或点击其右侧的两个下拉框，以选择显示变暗后时间的新值。
请注意，这些时间值适用于不活动的分钟数。使用设备时，显示屏不会变暗。只有在您设置的时间内没有使用时，它才会变暗。
设置在一段时间不活动后显示屏关闭时
在任何Windows （10、7 或 8.1）中，您可以在(Windows)“编辑计划设置”("Edit Plan Settings")窗口中设置显示屏何时关闭。这两个操作系统中的选项是相同的。使用“关闭显示”("Turn off the display")旁边的下拉框更改以下值：
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“使用电池”("On battery") - 默认情况下，应设置为 5 分钟
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“插入”("Plugged in") - 默认情况下应为 15 分钟。
设置(Set)计算机在不使用时的睡眠速度
同样在“编辑计划设置”窗口中，您可以使用("Edit Plan Settings")“使计算机进入睡眠状态”("Put the computer to sleep")旁边的下拉框来选择设备在使用电池的情况下何时进入睡眠状态以及何时插入。睡眠过程在启动后启动您设置的不活动时间。
如何在使用电池和插入电源时设置屏幕亮度(screen brightness)
您可以做的另一件事是在设备使用电池运行和插入电源时调整显示器的亮度。在“编辑计划设置”("Edit Plan Settings")窗口中，您可以控制显示器的亮度从最暗（左）到最暗最亮（右），通过使用“调整计划亮度”("Adjust plan brightness.")旁边的相应滑块。
从所有设置来看，这可以为您节省最长的电池寿命。所有其他设置在定义的不活动时间后应用。在您的设备上工作时应用亮度。较低的值可以为您节省最多的能量，但它们也会使屏幕使用起来不太舒服。
注意：(NOTE:)此外，如果您想在使用Windows 设备(Windows device)时随时随地调整屏幕亮度(screen brightness)，请使用我们在本指南中分享的建议：在Windows（所有版本）中调整屏幕亮度的 8 种方法。(screen brightness)
完成更改所需的所有设置后，请确保按“保存更改”("Save changes")按钮以应用它们。
为什么“编辑计划设置(Edit Plan Settings)”窗口在您的不同设备上有不同的内容？
上面显示的几乎所有设置都可以在装有Windows的移动设备和笔记本电脑上使用。但是，如果您的设备在Windows 10或Windows 8.1上运行，则“调暗显示”("Dim the display")选项不可用。在这两种操作系统中，显示屏会在屏幕关闭前 15 秒自动变暗。
此外，在台式计算机上，您只有两个可以更改的设置：“让计算机进入睡眠状态”("Put the computer to sleep")和“关闭显示器”。("Turn off the display.")没有名为“On battery”的列，因为您的台式计算机上没有电池。他们总是插上电源。
如何恢复到电源计划的默认设置(power plan)
如果您对为特定计划所做的配置不满意，您可以恢复为默认值。无论(Regardless)您使用的是 Windows 10、Windows 7 还是Windows 8.1，首先打开“电源选项(Power Options)”窗口，然后单击或点击要更改回其默认值的计划的“更改计划设置”链接。("Change plan settings")然后，在“编辑计划设置”("Edit Plan Settings")窗口中，单击或点击“恢复此计划的默认设置”("Restore default settings for this plan")链接。
将弹出一个确认对话框(confirmation dialog)，询问您是否确定要恢复计划的默认设置。按是(Yes)。
现在该计划已恢复为默认设置，您可以根据需要再次更改它们。
如何在Windows 10(Windows 10)中使用“设置”应用(Settings app)更改屏幕的行为方式以及电脑何时进入睡眠状态
在Windows 10中，您还可以使用“设置”(Settings )应用来设置屏幕何时关闭以及计算机何时进入睡眠状态。这些选项与您从控制面板的(Control Panel)“编辑计划设置”("Edit Plan Settings")窗口中获得的选项相同，但由Microsoft设计，以匹配Windows 10的设计并成为“设置”(Settings)应用程序的一部分。
首先(Start)打开设置，然后导航到"System - > Power & sleep settings."您应该看到如下内容：
在“设置”应用程序的“(Settings)电源和睡眠(Power & sleep)”部分，您获得的前两个设置是关于屏幕(Screen)的：
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“使用电池电源，之后关闭”("On battery power, turn off after,")，在笔记本电脑上默认设置为 5 分钟，以及
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“插入后关闭”("When plugged in, turn off after,")，笔记本电脑默认设置为 10 分钟。
您可以通过单击或点击它们并选择您喜欢的值来更改这些时间。
第二个设置区域称为睡眠(Sleep)。您看到的两个设置控制设备何时进入睡眠状态：
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“使用电池电源，PC 在之后进入睡眠状态”("On battery power, PC goes to sleep after") - 默认情况下，设置为 15 分钟
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“插入后，PC 进入睡眠状态”("When plugged in, PC goes to sleep after") - 默认设置为 30 分钟
您可以通过单击或点击下拉框并选择您喜欢的时段来调整您认为合适的时间。
这是所有的了！
你改了什么设置？
如您所见，设置显示器何时变暗或关闭、选择设备休眠后的不活动时间以及在使用电池运行时使屏幕不那么亮，这些都是很容易做到的事情。在结束本教程之前，我们想知道您个性化了哪些设置以及原因。在下面发表评论，让我们讨论。
Set how the screen behaves and when the PC goes to sleep (on battery vs. plugged in)
One of the great things about Windows is that it allows you to customize almost everything you wаnt. This іncludes modifying the defaυlt power plans found in Windows so that they better suit your needs. That means that yoυ can configure things like when your Windows laptoр or tablet dims or turns off itѕ screen (after a perіod of inactivity), when it goes to sleep after you step away from it, or automatіcally adjust the screen brіghtneѕs when rυnning on battery, to save more power. Here is how you can do all that:
NOTE: This guide covers Windows 10, Windows 7, and Windows 8.1.
How to access the basic settings of your active power plan
You must first access the basic settings of your active power plan. If you do not know how to do that, read this guide: 9 ways to access the power plans in Windows.
However, if you are in a hurry, one of the methods that work in any Windows version, is to right-click (or tap and hold) on the small battery icon from the system tray, and then choose "Power Options."
This opens a window called "Power Options." In it, click or tap on the "Change plan settings" next to your currently selected power plan.
Once you open power plan basic settings, you can start adjusting them how you want.
Set how fast the display dims after a period of inactivity (only in Windows 7)
This feature is available only if you are using Windows 7. If you are using Windows 10 or Windows 8.1, it is not available. The first setting from the "Edit Plan Settings" window is called "Dim the display." Click or tap on the two drop-down boxes from its right side, to select new values for the time after which the display is dimmed.
Note that these time values apply for minutes of inactivity. While you are using the device, the display does not dim. It dims only after it has not been used for the time that you have set.
Set when the display turns off after a period of inactivity
In any Windows (10, 7 or 8.1), you can set when the display turns off, in the "Edit Plan Settings" window. The options are the same in these two operating systems. Use the drop-down boxes next to "Turn off the display" to change the values for:
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"On battery" - by default, it should be set to 5 minutes
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"Plugged in" - should be 15 minutes by default.
Set how fast the computer sleeps when it is not used
Also in the "Edit Plan Settings" window, you can use the drop-down boxes next to "Put the computer to sleep" to select when the device sleeps while on battery and when it is plugged in. The sleep procedure is started after the period of inactivity that you have set.
How to set the screen brightness when on battery and when plugged in
Another thing you can do is adjust the brightness of your display when your device is running on battery and when it is plugged in. In the "Edit Plan Settings" window you can control the brightness of your display from the darkest (left) to the brightest (right), by using the corresponding slider next to "Adjust plan brightness."
From all the settings, this can save you the most battery life. All the other settings apply after a defined period of inactivity. The brightness is applied while working on your device. Lower values can save you the most energy, but they also make the screen less comfortable to use.
NOTE: Furthermore, if you want to adjust the screen brightness on the go while working on your Windows device, use the advice we shared in this guide: 8 ways to adjust the screen brightness in Windows (all versions).
When you are done changing all the settings you wanted, make sure to press the "Save changes" button to apply them.
Why does the "Edit Plan Settings" window have different contents on your different devices?
Almost all the settings shown above are available on mobile devices and laptops with Windows. However, if your device is running on Windows 10 or Windows 8.1, the "Dim the display" option is not available. In these two operating systems, the display dims automatically 15 seconds before the screen turns off.
Also, on desktop computers, you have only two settings available to change: "Put the computer to sleep" and "Turn off the display." There is no column named "On battery" because you do not have a battery on desktop computers. They are always plugged in.
How to revert to the default settings of a power plan
If you are not satisfied with the configuration you made for a specific plan, you can revert to the default values. Regardless of whether you have Windows 10, Windows 7 or Windows 8.1, first open the Power Options window and click or tap the "Change plan settings" link for the plan you want to be changed back to its defaults. Then, in the "Edit Plan Settings" window, click or tap the "Restore default settings for this plan" link.
A confirmation dialog pops up, asking if you are sure that you want to restore the plan's default settings. Press Yes.
Now the plan is set back to its default settings, and you can change them again if you want to.
How to change the way your screen behaves and when the PC goes to sleep in Windows 10, using the Settings app
In Windows 10, you can also use the Settings app to set when your screen turns off and when your computer sleeps. These options are the same as the ones you get in the "Edit Plan Settings" window from the Control Panel but have been designed by Microsoft to match the design of Windows 10 and be part of the Settings app.
Start by opening Settings and then navigate to "System - > Power & sleep settings." You should see something like this:
In the Power & sleep section from the Settings app, the first two settings you get are about the Screen:
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"On battery power, turn off after," which by default is set to 5 minutes on laptops, and
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"When plugged in, turn off after," which by default is set to 10 minutes on laptops.
You can change these times by clicking or tapping on them and selecting the values you prefer.
The second area of settings is called Sleep. The two settings you see control when the device goes to sleep:
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"On battery power, PC goes to sleep after" - by default, set to 15 minutes
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"When plugged in, PC goes to sleep after" - set to 30 minutes by default
You can adjust the times as you see fit, by clicking or tapping on the drop-down boxes and selecting the periods you prefer.
This is all!
What settings did you change?
As you can see, setting when your display dims or turns off, choosing after how much inactivity the device sleeps and making your screen less bright when running on battery, are all easy things to do. Before closing this tutorial, we want to know which settings you have personalized and why. Comment below and let's discuss.
