有时，用户会用尽所有选项并求助于重置 BIOS 以修复计算机。
BIOS可能由于更新错误或恶意软件而损坏。学习如何重置BIOS是排除 PC 故障的重要步骤。
什么是 BIOS？
BIOS代表基本输入输出系统(Basic Input Output System)。每块主板(Every motherboard)都带有一个BIOS。该软件使用户可以在操作系统(operating system)加载之前在硬件级别(hardware level)控制他们的计算机并排除计算机故障。
通常，您只需进入BIOS 设置(BIOS setup)即可更改引导顺序(boot order)或配置设备设置。它还提供了已安装硬件的列表，例如您的硬盘驱动器、CPU和RAM。
根据您运行的操作系统， (operating system)BIOS可能有不同的名称。例如，Mac计算机运行称为Open Firmware 或 EFI(Open Firmware or EFI)的东西，可以通过重新启动并按住CMD + Option + O + F键来访问。
什么是 UEFI？
较新的计算机已将BIOS替换为UEFI或统一可扩展固件接口(Firmware Interface)。与BIOS(BIOS)相比，UEFI速度更快，并且具有改进的安全功能。然而，这两个术语经常被大多数用户互换使用。
笔记本电脑 BIOS 与台式机 BIOS(Desktop BIOS)：有区别吗？
无论您是在笔记本电脑还是台式机上访问BIOS ，该过程都应该相同。但请注意，在某些情况下，用户会被完全锁定在BIOS之外。这将需要打开您的PC 机箱(PC case)，这可能会使您的保修失效。像这种情况，最好交给专业技术人员处理。
无论您运行的是Windows 7、Windows 8 还是 WINdows 10。所有现代主板都内置了BIOS。
访问 BIOS
您如何访问 BIOS(access your BIOS)将取决于您的主板。没有真正的标准集，因此制造商倾向于分配不同的键。但是，无论您拥有什么品牌，进入您的BIOS都是从PC 重新启动(PC reboot)开始的。
在计算机启动时，反复按使您进入BIOS的键。加载屏幕(load screen)有时会提示要按什么按钮或按键(button or keys)。在大多数机器上，它是F2键，但有些笔记本电脑使用DEL或F8。多次按下右键，计算机将加载您的BIOS设置。
Windows 10 用户还可以使用Shift
+ Restart方法访问BIOS 。转到开始(Start)>电源(Power)。在按住Shift
键的同时，按Restart。这将打开一个带有多个故障排除选项的蓝色窗口。(blue window)
从这里，转到疑难解答(Troubleshoot)>高级选项(Advanced Options)> UEFI 固件设置(UEFI
Firmware Settings)。点击重新启动(Restart)
按钮继续。
计算机将重新启动，但最后会进入BIOS，而不是让您进入登录屏幕(login screen)。
重置 BIOS
首先，如果您因为密码无法进入BIOS，请务必阅读我们关于如何重置BIOS 密码(BIOS password)的文章。
进入BIOS后，您可以尝试按F9或F5键以显示“加载默认选项(Load Default Options)”提示。单击是(Yes)将足以恢复默认设置。根据您的BIOS，此键可能会有所不同，但通常会列在屏幕底部。
您还可以在安全选项卡中重置(Security tab)BIOS。不同的主板有不同的菜单选项，但会有一个会重置您的BIOS。
完成后不要忘记保存并退出(Save and Exit)。最后，如果它不在“安全”选项卡(Security tab)下，或者您根本没有，最后一个选项是单击“退出(Exit)”链接。
在退出之前，您会看到几个不同的选项：丢弃并重新启动(discard and restart)、保存设置并重新启动、加载默认值等。
就我而言，它是Load Optimized Defaults。如果您选择该选项，它将继续并将BIOS重置为默认值并重新启动。
How to Reset BIOS to Default Settings
There are times
when users exhaust all their options and resort to resetting their BIOS in
order to fix their computer.
The BIOS can become corrupted due to an update gone wrong or through malware. Learning how to reset the BIOS is an important step in troubleshooting your PC.
What
is BIOS?
BIOS stands for Basic Input Output System. Every motherboard comes with a BIOS. This software makes it possible for users to control their computers at the hardware level before the operating system loads and to troubleshoot the computer.
Usually, you’ll only need to enter the BIOS setup to make changes to the boot order or to configure device settings. It also provides a list of installed hardware like your hard drive, CPU, and RAM.
Depending on the operating system you are running, the BIOS may have a different name. For example, Mac computers run something called Open Firmware or EFI and can be accessed by restarting and holding down the CMD + Option + O + F keys.
What
is UEFI?
Newer computers
have replaced BIOS with UEFI or Unified Extensible Firmware Interface. UEFI is
faster and has improved security features compared to BIOS. Both terms,
however, are often used interchangeably by most users.
Laptop
BIOS vs Desktop BIOS: Is there a difference?
The process should be the same whether you’re accessing the BIOS on your laptop or your desktop. But do note that there are cases when users are locked out of their BIOS completely. This would require opening your PC case, which could potentially void your warranty. In cases like this one, it would be best to leave it to professional technicians.
It does not
matter if you’re running Windows 7, Windows 8, or WIndows 10. All modern
motherboards have built-in BIOS.
Accessing
BIOS
How you access your BIOS would depend on your motherboard. There’s no real standard set so manufacturers tend to assign different keys. No matter what brand you own, though, getting into your BIOS starts with a PC reboot.
While the computer is booting, repeatedly hit the key that gets you into BIOS. The load screen will sometimes leave hints as to what button or keys to press. On most machines, it is the F2 key but some laptops use DEL or F8 instead. Hit the right button enough times and the computer will load your BIOS settings.
Windows 10 users
can also access BIOS using the Shift
+ Restart method. Go to Start > Power. While holding the Shift
key, press Restart. This will bring
up a blue window with several troubleshooting options.
From here, go to Troubleshoot > Advanced Options > UEFI
Firmware Settings. Hit the Restart
button to continue.
The computer will reboot but enter the BIOS at the end instead of bringing you to the login screen.
Resetting the BIOS
Firstly, if you can’t enter the BIOS because of a password, make sure to read our article on how to reset a BIOS password.
Once you’re in BIOS, you can try to hit either the F9 or F5 keys to bring up the Load Default Options prompt. Clicking Yes will be enough to restore the default settings. This key may be different depending on your BIOS, but it’ll usually be listed at the bottom of the screen.
You can also
reset BIOS in the Security tab. Different motherboards have varying menu
options but there will be one that would reset your BIOS.
Don’t forget to Save and Exit when you’re finished. Finally, if it’s not under the Security tab, or if you simply don’t have one, the last option is to click on the Exit link.
Before you exit, you’ll see a couple of different options: discard and restart, save settings and restart, load defaults, etc.
In my case, it was Load Optimized Defaults. If you select that option, it’ll go ahead and reset the BIOS to default and reboot.
