默认情况下，您的 PC 从其内部硬盘或固态驱动器启动，但这并不总是理想的。多个(Multiple)实例（例如对 Windows 安装进行故障排除(troubleshooting your Windows installation)、设置不同的操作系统(setting up a different operating system)以及检查 RAM 是否有错误）(checking the RAM for errors)可能需要您从外部媒体（如DVD或USB记忆棒）启动。
在本教程中，您将向您展示如何在Microsoft Windows 10/11 PC上更改BIOS或UEFI中的引导顺序。(UEFI)但在您这样做之前，您可能需要考虑使用一次性启动菜单(Boot Menu)。
如何使用一次性启动菜单
在Windows(Windows)中更改启动顺序的最佳方法是将 PC 的一次性启动菜单(One-Time Boot Menu)用于一次性实例。这涉及在启动引导序列期间立即 按下特定键，例如Esc或F12 。
提示(Tip)：您可能会在计算机启动时看到启动菜单中列出的启动菜单键。(Boot Menu)如果没有，请查看主板的用户手册或在线文档以获取正确的密钥。
加载 One-Time Boot Menu后，使用向上(Up)和向下(Down)方向箭头键选择要启动的设备，然后按Enter。
但是，如果您想从同一设备多次启动或将 PC 配置为优先使用外部媒体，最好通过BIOS或UEFI永久更改启动顺序。
如何访问 BIOS(Access BIOS)和更改引导(Change Boot)顺序
BIOS stands for Basic Input/Output System。它是通过执行POST(P.O.S.T)来验证计算机硬件的低级软件。（开机(Power)自检(Self Test)）在启动时。如果一切正常，它会从内部存储加载 Windows。但是，您可以指示计算机的BIOS在其他地方寻找可启动媒体，例如光盘或可移动USB驱动器。
如何访问 BIOS 设置(How to Access the BIOS Settings)
要更改引导顺序，您必须在计算机启动时按BIOS 设置(BIOS Setup)键来指示您的 PC 加载BIOS用户界面。(BIOS)它因每个主板制造商而异，因此您可以执行以下操作进入BIOS：
- 在启动时按启动画面中列出的BIOS 设置键。(BIOS Setup)
- 按最常用的键F2、F9、F10、F11和DEL进行试验。
- 检查您的 PC 或主板的用户手册或在线文档。
- 在一次性启动菜单中寻找进入设置的选项。(Enter Setup)
提示(Tip)：在引导过程中多次快速按下BIOS 设置键。(BIOS Setup)如果您看到Windows徽标，则必须重新启动 PC 并重试。
如果您运行的是较新的 Windows 11/10 PC，请跳至UEFI部分，该部分具有不同的访问BIOS的方法。
如何在 BIOS 中更改引导顺序(How to Change Boot Order in BIOS)
加载BIOS设置实用程序后，您可以在找到可引导设备列表或引导顺序后更改引导顺序。确切的方法因主板制造商而异，但您应该通过以下步骤了解总体思路。
1. 导航至显示引导设备列表或计算机引导顺序的选项卡或部分，例如引导(Boot)或高级 BIOS 功能。( Advanced BIOS Features)
2. 突出显示每个设备（可移动设备(Removable Devices)、CD-ROM、硬盘(Hard Drive)等）并按您想要的顺序排列它们。如果BIOS显示First Boot Device、Second Boot Device、Third Boot Device等选项，请选择每个项目并在弹出菜单中选择一个设备。
3. 保存更改并退出BIOS。
BIOS需要使用键盘进行导航。您会在屏幕的底部和右侧找到相应操作的按键列表，例如：
- 向左(Left)、向右(Right)、向上(Up)和向下(Down )方向箭头 -在选项卡之间切换(Switch)或突出显示项目。
- Enter — 选择突出显示的项目。
- 加号(Plus)( + ) 或Page Up —将(Move)突出显示的项目向上移动到列表中。
- 减号(Minus)( – ) 或Page Down —将(Move)突出显示的项目向下移动到列表中。
- F10 — 保存并退出。
如何访问 UEFI(Access UEFI)并更改引导(Change Boot)顺序
如果您使用一台新 PC，它很可能使用UEFI（或统一可扩展固件接口(Unified Extensible Firmware Interface)）。它比BIOS更快、更高效，支持更大的存储驱动器。更改引导顺序的过程与BIOS(BIOS)基本相同，如果不是更简单的话。
注意(Note)：尽管使用UEFI，您的主板制造商可能将其称为“ UEFI BIOS”或简称为“BIOS”。
如何访问 UEFI(How to Access the UEFI)
根据您的 PC 主板，您可以通过在启动时按相关键或尝试使用F2、F9、F10、F11和DEL键来加载(DEL)UEFI 设置(UEFI Setup)。您还可以查看主板的用户手册或在线文档以获取确切的密钥。
但是，可以通过WinRE（Windows 恢复环境）中的(WinRE (Windows Recovery Environment))高级启动(Advanced Startup)选项(Options)屏幕在任何 PC 上输入UEFI。
1. 启动到 Windows 10/11。
2. 启动开始(Start)菜单并打开设置(Settings)。然后，转到系统(System)/更新和安全(Update & Security)>恢复(Recovery)>高级选项(Advanced Options)。
3. 选择立即重启(Restart now)。
4.等到(Wait)您的 PC 重新启动并加载WinRE。
5. 选择疑难解答(Troubleshoot)>高级选项(Advanced options)> UEFI 固件设置( UEFI Firmware Settings)>重新启动(Restart)以加载 UEFI。
提示(Tip)：如果您无法启动到Windows桌面，请在Windows徽标处硬重置您的 PC 三次以进入Windows 恢复环境(Windows Recovery Environment)。
如何在 UEFI 中更改引导顺序(How to Change Boot Order in UEFI)
大多数 UEFI 界面支持鼠标和触控板导航。如果您没有，请使用屏幕底部和右侧的键盘热键与菜单选项进行交互。
UEFI接口也略有不同。例如，华硕(ASUS)笔记本电脑中的UEFI显示的EZ 模式(EZ Mode)仅显示标准选项列表。查找引导优先级(Boot Priority)或引导顺序(Boot Sequence )部分以更改引导顺序。或者，您可以切换到高级模式(Advanced Mode)（您会在屏幕上的某处看到列出的选项）并执行以下步骤。
1. 导航到UEFI中的引导选项卡。(Boot)
2. 查找可引导设备列表或引导顺序（例如，Boot Options #1）。
3. 根据需要更改引导顺序——例如，将USB设备设置为第一个引导设备，将Windows 引导管理器(Windows Boot Manager)设置为第二个。
4. 切换到保存(Save)选项卡并保存您的更改。
注意(Note)：UEFI 使用称为安全启动(Secure Boot)的功能，可防止您从外部存储设备加载操作系统（例如Linux） 。(Linux—from)要禁用该功能，请在UEFI中查找(UEFI)Secure Boot选项（通常位于Security选项卡下）并将其设置为Disabled。
您的 PC 的新引导顺序如何工作
根据您更改启动顺序的方式，您的 PC 将检查第一个启动设备是否有可启动媒体。如果未能检测到任何设备，它将查看列表中的下一个设备，依此类推，直到找到可以启动的设置或操作系统。如果您想稍后更改启动顺序，请重新进入BIOS或UEFI并将您的硬盘驱动器或SSD设置为第一个启动设备。
How to Change the Boot Order in the BIOS on Your Windows PC
Your РC boots from itѕ іnternаl hard dіsk or solid-state drive by default, but that’s not always ideal. Multiple instances—such as troubleshooting your Windows installation, setting up a different operating system, and checking the RAM for errors—may require you to boot from external media such as a DVD or USB stick.
In this tutorial, you’ll show you how to change the boot order in the BIOS or UEFI on your Microsoft Windows 10/11 PC. But before you do that, you may want to consider using the One-Time Boot Menu instead.
How to Use the One-Time Boot Menu
The best way to change the boot order in Windows is to use your PC’s One-Time Boot Menu for one-off instances. That involves pressing a specific key—such as Esc or F12—immediately during the startup boot sequence.
Tip: You may see the Boot Menu key listed within the splash screen at computer startup. If not, check your motherboard’s user manual or online documentation for the correct key.
After loading the One-Time Boot Menu, use the Up and Down directional arrow keys to select the device you want to boot from and press Enter.
However, if you want to boot from the same device multiple times or configure your PC to give preference to external media, it’s best to make a permanent change to the boot order via the BIOS or UEFI.
How to Access BIOS and Change Boot Order
BIOS stands for Basic Input/Output System. It’s low-level software that verifies your computer’s hardware by performing a P.O.S.T. (Power On Self Test) at startup. If everything then appears okay, it loads Windows from internal storage. However, you can instruct your computer’s BIOS to look elsewhere for bootable media, such as an optical disc or removable USB drive.
How to Access the BIOS Settings
To change the boot order, you must instruct your PC to load the BIOS user interface by pressing the BIOS Setup key at computer startup. It varies for each motherboard manufacturer, so here’s what you can do to enter BIOS:
- Press the BIOS Setup key listed within the splash screen at startup.
- Experiment by pressing the most common keys—F2, F9, F10, F11, and DEL.
- Check your PC or motherboard’s user manual or online documentation.
- Look for an option to Enter Setup inside the One-Time Boot Menu.
Tip: Press the BIOS Setup key quickly multiple times during the boot sequence. If you see the Windows logo, you must reboot your PC and try again.
If you’re running a newer Windows 11/10 PC, then skip down to the UEFI section, which has a different method to access the BIOS.
How to Change Boot Order in BIOS
After loading the BIOS setup utility, you can change the boot order after locating the list of bootable devices or the boot order. The exact method varies between motherboard manufacturers, but you should get the general idea with the following steps.
1. Navigate to the tab or section—e.g., Boot or Advanced BIOS Features—that displays the list of boot devices or your computer’s boot order.
2. Highlight each device (Removable Devices, CD-ROM, Hard Drive, etc.) and arrange them in the order you want. If the BIOS displays options such as the First Boot Device, Second Boot Device, Third Boot Device, and so on, select each item and pick a device on the pop-up menu.
3. Save your changes and exit the BIOS.
BIOS requires the keyboard for navigation. You’ll find a list of keys with their corresponding actions listed at the bottom and right sides of the screen, such as:
- Left, Right, Up, and Down directional arrows — Switch between tabs or highlight items.
- Enter — Select highlighted items.
- Plus (+) or Page Up — Move highlighted items up a list.
- Minus (–) or Page Down — Move highlighted items down a list.
- F10 — Save and exit.
How to Access UEFI and Change Boot Order
If you use a new PC, the chances are that it uses UEFI (or Unified Extensible Firmware Interface). It’s faster and more efficient than the BIOS, with support for larger storage drives. The procedure to change the boot order is essentially the same as the BIOS, if not easier.
Note: Despite using UEFI, your motherboard manufacturer may refer to it as the “UEFI BIOS” or just “BIOS”.
How to Access the UEFI
Depending on your PC’s motherboard, you might be able to load the UEFI Setup by pressing the relevant key at startup or by experimenting with the F2, F9, F10, F11, and DEL keys. You could also check your motherboard’s user manual or online documentation for the exact key.
However, it’s possible to enter the UEFI on any PC via the Advanced Startup Options screen in WinRE (Windows Recovery Environment).
1. Boot into Windows 10/11.
2. Launch the Start menu and open Settings. Then, go to System/Update & Security > Recovery > Advanced Options.
3. Select Restart now.
4. Wait until your PC reboots and loads WinRE.
5. Select Troubleshoot > Advanced options > UEFI Firmware Settings > Restart to load the UEFI.
Tip: If you have trouble booting into the Windows desktop, hard reset your PC at the Windows logo three times to enter the Windows Recovery Environment.
How to Change Boot Order in UEFI
Most UEFI interfaces support mouse and trackpad navigation. If yours don’t, use the keyboard hotkeys at the bottom and right sides of the screen to interact with the menu options.
UEFI interfaces are also slightly different from each other. For example, the UEFI in ASUS laptops displays an EZ Mode that only shows a list of standard options. Look for a Boot Priority or Boot Sequence section to change the boot order. Or, you can switch to Advanced Mode (you’ll see the option listed somewhere on the screen) and go through the following steps.
1. Navigate to the Boot tab within the UEFI.
2. Look for a list of bootable devices or a boot order (e.g., Boot Options #1).
3. Change the boot order as needed—e.g., set a USB device as the first boot device and Windows Boot Manager as the second.
4. Switch to the Save tab and save your changes.
Note: UEFI uses a feature called Secure Boot that prevents you from loading operating systems—such as Linux—from external storage devices. To disable the functionality, look for a Secure Boot option within the UEFI (usually located under the Security tab) and set it to Disabled.
How Your PC’s New Boot Order Works
Depending on how you change the boot order, your PC will check the first boot device for bootable media. If it fails to detect any, it will look at the next device within the list and so on until it finds a setup or operating system that it can boot into. If you want to change the boot order at a later time, re-enter the BIOS or UEFI and set your hard disk drive or SSD as the first boot device.
