Microsoft Windows 功能键(Microsoft Windows function keys)（键盘顶行的F1 至F12键）可以执行多项任务，具体取决于您使用这些键的方式。(F12)您可以锁定或解锁这些键以使它们执行各种任务。我们将向您展示如何在Windows 10和 11 中执行此操作。
默认情况下，键盘的功能键执行印在其上的任务。例如，大多数键盘上的 F2 会降低扬声器的音量。您可以通过锁定和解锁这些键来执行分配给 F1、F2 等的任务。
为什么要锁定(Lock)或解锁(Unlock)Windows功能键(Windows Function Keys)？
是否保持 Fn 键锁定或解锁(keep your Fn keys locked or unlocked)取决于您喜欢使用哪些功能。如果您更多地使用按键的打印功能而不是实际的 F1 至F12功能，那么保持按键解锁是一个好主意。如果您倾向于更频繁地使用 F1 至F12功能，请锁定功能键，以便只需击键即可使用这些功能。
您可以通过按住键盘上的 Fn 键(the Fn key on your keyboard)，然后按功能键来交替使用功能键。
使用Fn 键(Fn Key)锁定或解锁功能(Unlock Function Buttons)按钮(Lock)
锁定或解锁功能键的一种方法是使用键盘的 Fn 按钮。大多数键盘都有此按钮，它允许您更改功能键的默认行为。
例如，您可以锁定功能键，因此通过同时按下Fn + Esc按钮即可使用标准 F1 至F12功能。(F12)Fn 键的指示灯将亮起，表示 Fn 锁定已应用。如果 Esc 键不起作用，您可以修复它。
如果您想使用功能键的印刷功能，请同时按Fn + Esc挂锁灯将熄灭，表示钥匙已解锁。
(Lock)使用Windows 移动中心(Windows Mobility Center)锁定或解锁(Unlock)功能(Function Keys)键
Windows Mobility Center是一个内置的Windows实用程序，可用于在 PC 上执行基本任务。该工具可以更改屏幕的亮度、静音或取消静音，甚至锁定或解锁功能键。
您可以使用此工具使功能键执行(make your function keys perform)标准 F1 至F12任务或印在按键上的任务。请注意，并非所有电脑都在(PCs)Windows Mobility Center中提供功能键选项。如果您遇到这种情况，请使用替代方法来更改这些键在计算机上的行为。
- 启动“开始”(Start)菜单，搜索Windows Mobility Center，然后在搜索结果中选择该工具。
- 在工具中
找到功能键行部分。(Function Key Row)
- 选择该部分中的下拉菜单，然后选择功能(Function)键使按键执行标准功能或选择多媒体(Multimedia)键使按钮执行印在其上的功能。
- 更改设置后
关闭Windows 移动中心。(Windows Mobility Center)
Use Windows BIOS/UEFI更改笔记本电脑(Your Laptops)或台式机上功能键的行为(Desktops)
您可以使用 Windows 的 BIOS/UEFI 界面来决定功能键的用途。如果您的键盘没有 Fn 键并且您无法访问Windows 移动中心(Windows Mobility Center)中的功能键功能，您可能需要使用此方法。
这种BIOS/UEFI方法可让您快速轻松地更改按键执行打印任务还是标准操作。
步骤 1：在Windows中访问BIOS/UEFI
第一步是access the BIOS/UEFI screen on your Windows system。请按照以下适用于您的Windows(Windows)版本的步骤操作，以在您的 PC 上访问该屏幕。
在 Windows 11 上
- 按Windows + I
打开“设置”。
- 在左侧边栏中选择“系统” 。(System)
- 在右侧窗格中
选择“恢复” 。(Recovery)
- 选择高级(Advanced)启动旁边的立即重新启动(Restart)。
- (Choose Restart)在提示中
选择立即重新启动以重新启动您的电脑。
在 Windows 10 上
- 按Windows + I
启动设置。
- (Select Update)在“设置”中(Settings)选择“更新和安全”(Security)。
- 在左侧边栏中选择“恢复” 。(Recovery)
- 在右侧的
“高级(Advanced)启动”下选择“立即重新启动” 。(Restart)
第 2 步：更改功能键行为(Function Keys Behavior)
- 导航(Navigate)到Troubleshoot > Advanced选项 > UEFI 固件设置(UEFI Firmware Settings)，然后选择重新启动(Restart)。
- 访问“主要”(Main)选项卡并使用箭头键
突出显示“功能键行为”选项。(Function)
- (Select Function Key)如果您希望 Fn 键作为标准功能键运行，请选择“功能键”；如果您希望功能键执行印在其上的任务，
请选择“媒体键” 。(Media Key)
- 按键盘上的
F10键保存BIOS设置。(BIOS)
- 在提示中选择“是”以确认您的选择。(Yes)
- 您的电脑将重新启动。
您的功能键现在将按照您在BIOS/UEFI中指定的方式工作。
(Make Function Keys Perform Standard)使功能键在您的(Your)PC
上执行标准或多媒体功能(Multimedia Functions)
Windows使您可以灵活地选择键盘功能键的功能。您可以让它们执行标准操作，例如使用 F1 打开应用程序的帮助窗口，或者让它们运行多媒体任务，例如降低或提高音量。
您可以使用上述方法锁定或解锁 Fn 键，然后在(lock or unlock your Fn keys)Dell笔记本电脑、Lenovo计算机或任何其他基于 Windows 的计算机上使用按键的默认功能。享受！
How to Lock and Unlock the Function (Fn) Keys in Windows
Microsoft Windows function keys (the F1 to F12 keys in the top row of your keyboard) can perform multiple tasks, depending on how you use those keys. You can lock or unlock these keys to make them do various tasks. We’ll show you how to do just that in Windows 10 and 11.
By default, your keyboard’s function keys perform the tasks printed on them. For example, the F2 on most keyboards decreases the volume level from your speakers. You can make these keys perform the tasks assigned to F1, F2, and so on, by locking and unlocking them.
Why Lock or Unlock Your Windows Function Keys?
Whether to keep your Fn keys locked or unlocked depends on what features you prefer to use. If you use the keys’ printed functions more than the actual F1 to F12 features, keeping the keys unlocked is a good idea. If you tend to use the F1 to F12 features more often, lock your function keys so you can use those features with a single keystroke.
You can alternate between function key usage by pressing and holding down the Fn key on your keyboard and then pressing a function key.
Use the Fn Key to Lock or Unlock Function Buttons
One way to lock or unlock your function keys is to use your keyboard’s Fn button. Most keyboards have this button, and it allows you to change your function keys’ default behavior.
For example, you can lock your function keys, so the standard F1 to F12 features work by pressing the Fn + Esc buttons at the same time. Your Fn key’s light will turn on, indicating your Fn lock is applied. You can fix the Esc key if it’s not working.
If you’d like to use the function keys’ printed features, unlock your keys by pressing Fn + Esc at the same time. The padlock light will turn off, indicating the keys are unlocked.
Lock or Unlock the Function Keys With Windows Mobility Center
Windows Mobility Center is a built-in Windows utility you can use to perform basic tasks on your PC. This tool can change your screen’s brightness, mute or unmute your sounds, and even lock or unlock your function keys.
You can use this tool to make your function keys perform the standard F1 to F12 tasks or the tasks printed on the keys. Note that not all the PCs offer the function key option in Windows Mobility Center. If this is the case with you, use an alternate method to change these keys’ behavior on your computer.
- Launch the Start menu, search for Windows Mobility Center, and select the tool in the search results.
- Find the Function Key Row section in the tool.
- Choose the drop-down menu in the section and select Function key to make the keys perform the standard functions or Multimedia key to make the buttons perform the features printed on them.
- Close Windows Mobility Center when you’ve changed the settings.
Use Windows BIOS/UEFI to Change the Function Keys’ Behavior on Your Laptops or Desktops
You can use Windows’ BIOS/UEFI interface to decide what your function keys do. You might want to use this method if your keyboard doesn’t have an Fn key and you can’t access the function key feature in Windows Mobility Center.
This BIOS/UEFI method lets you quickly and easily change whether your keys perform the printed tasks or the standard operations.
Step 1: Access BIOS/UEFI in Windows
The first step is to access the BIOS/UEFI screen on your Windows system. Follow the steps for your Windows version below to get to that screen on your PC.
On Windows 11
- Open Settings by pressing Windows + I.
- Select System in the sidebar on the left.
- Choose Recovery in the pane on the right.
- Select Restart now next to Advanced startup.
- Choose Restart now in the prompt to reboot your PC.
On Windows 10
- Launch Settings by pressing Windows + I.
- Select Update & Security in Settings.
- Choose Recovery in the sidebar on the left.
- Select Restart now under Advanced startup on the right.
Step 2: Change Function Keys Behavior
- Navigate to Troubleshoot > Advanced options > UEFI Firmware Settings and choose Restart.
- Access the Main tab and highlight the Function key behavior option using arrow keys.
- Select Function Key if you want your Fn keys to operate as the standard function keys, or choose Media Key if you wish your function keys to perform the tasks printed on them.
- Save your BIOS settings by pressing the F10 key on your keyboard.
- Select Yes in the prompt to confirm your choice.
- Your PC will restart.
Your function keys will now work as you specified in your BIOS/UEFI.
Make Function Keys Perform Standard or Multimedia Functions on Your PC
Windows gives you the flexibility to choose what you’d like your keyboard’s function keys to do. You can make them perform the standard operations, like opening an app’s help window with F1, or make them run multimedia tasks, like reducing or increasing your volume levels.
You can lock or unlock your Fn keys using the methods outlined above, and then use your keys’ default functions on your Dell laptops, Lenovo machines, or any other Windows-based computers. Enjoy!
