Chris Hoffman is Editor-in-Chief of How-To Geek. He’s written about technology for over a decade and was a PCWorld columnist for two years. Chris has written for The New York Times, been interviewed as a technology expert on TV stations like Miami’s NBC 6, and had his work covered by news outlets like the BBC. Since 2011, Chris has written over 2,000 articles that have been read nearly one billion times—and that’s just here at How-To Geek. Read more.
A Windows, Linux, or Mac password just prevents people from logging into your operating system. It doesn’t prevent people from booting other operating systems, wiping your drive, or using a live CD to access your files.
Your computer’s BIOS or UEFI firmware offers the ability to set lower-level passwords. These passwords allow you to restrict people from booting the computer, booting from removable devices, and changing BIOS or UEFI settings without your permission.
When You May Want to Do This
Most people shouldn’t need to set a BIOS or UEFI password. If you’d like to protect your sensitive files, encrypting your hard drive is a better solution. BIOS and UEFI passwords are particularly ideal for public or workplace computers. They allow you to restrict people from booting alternative operating systems on removable devices and prevent people from installing another operating system over the computer’s current operating system.
Warning: Be sure to remember any passwords you set. You can reset the BIOS password on a desktop PC that you can open fairly easily, but this process may be much more difficult on a laptop you can’t open.
How It Works
Let’s say you’ve followed good security practices and have a password set on your Windows user account. When your computer boots, someone will have to enter your Windows user account password to use it or access your files, right? Not necessarily.
The person could insert a removable device like a USB drive, CD, or DVD with an operating system on it. They could boot from that device and access a live Linux desktop — if your files are unencrypted, they could access your files. A Windows user account password doesn’t protect your files. They could also boot from a Windows installer disc and install a new copy of Windows over the current copy of Windows on the computer.
You could change the boot order to force the computer to always boot from its internal hard drive, but someone could enter your BIOS and change your boot order to boot the removable device.
A BIOS or UEFI firmware password provides some protection against this. Depending on how you configure the password, people will need the password to boot the computer or just to change BIOS settings.
Of course, if someone has physical access to your computer, all bets are off. They could crack it open and remove your hard drive or insert a different hard drive. They could use their physical access to reset the BIOS password — we’ll show you how to do that later. A BIOS password still does provide extra protection here, particularly in situations where people have access to a keyboard and USB ports, but the computer’s case is locked up and they can’t open it.
How to Set a BIOS or UEFI Password
These passwords are set in your BIOS or UEFI settings screen. On pre-Windows 8 computers, you’ll need to reboot your computer and press the appropriate key during the boot-up process to bring up the BIOS settings screen. This key varies from computer to computer, but is often F2, Delete, Esc, F1, or F10. If you need help, look at your computer’s documentation or Google its model number and “BIOS key” for more information. (If you built your own computer, look for your motherboard model’s BIOS key.)
In the BIOS settings screen, locate the password option, configure your password settings however you like, and enter a password. You may be able to set different passwords — for example, one password that allows the computer to boot and one that controls access to BIOS settings.
You’ll also want to visit the Boot Order section and ensure the boot order is locked down so people can’t boot from removable devices without your permission.
On post-Windows 8 computers, you’ll have to enter the UEFI firmware settings screen through Windows 8’s boot options. Your computer’s UEFI settings screen will hopefully provide you with a password option that works similarly to a BIOS password.
On Mac computers, reboot the Mac, hold Command+R to boot into Recovery Mode, and click Utilities > Firmware Password to set a UEFI firmware password.
How to Reset a BIOS or UEFI Firmware Password
You can generally bypass BIOS or UEFI passwords with physical access to the computer. This is easiest on a desktop computer that’s designed to be opened. The password is stored in volatile memory, powered by a small battery. Reset the BIOS settings and you’ll reset the password — you can do this with a jumper or by removing and reinserting the battery. Follow our guide to clearing your computer’s CMOS to reset a BIOS password.
This process will obviously be more difficult if you have a laptop you can’t open up. Some computer models may have “back door” passwords that allow you to access the BIOS if you forget the password, but don’t count on it.
You may also be able to use professional services to reset passwords you forget. For example, if you set a firmware password on a MacBook and forget it, you may have to visit an Apple Store to have them fix it for you.
BIOS and UEFI passwords aren’t something most people should ever use, but they’re a useful security feature for many public and business computers. If you operated some sort of cybercafé, you’d probably want to set a BIOS or UEFI password to prevent people from booting into different operating systems on your computers. Sure, they could bypass the protection by opening up the computer’s case, but that’s harder to do than simply inserting a USB drive and rebooting.
Пароль Windows, Linux или Mac просто не дает людям войти в вашу операционную систему. Это не мешает людям загружать другие операционные системы, стирать данные с вашего диска или использование live CD для доступа к вашим файлам .
BIOS вашего компьютера или Прошивка UEFI предлагает возможность устанавливать пароли нижнего уровня. Эти пароли позволяют запретить пользователям загружать компьютер, загружаться со съемных устройств и изменять настройки BIOS или UEFI без вашего разрешения.
Когда вы можете захотеть это сделать
Большинству людей не нужно устанавливать BIOS или пароль UEFI. Если вы хотите защитить свои конфиденциальные файлы, шифрование вашего жесткого диска это лучшее решение. Пароли BIOS и UEFI особенно подходят для общедоступных компьютеров или компьютеров на рабочем месте. Они позволяют запретить пользователям загружать альтернативные операционные системы на съемных устройствах и не позволяют людям устанавливать другую операционную систему поверх текущей операционной системы компьютера.
Предупреждение: Обязательно запомните все установленные вами пароли. Вы можете сбросить пароль BIOS на настольном ПК, который вы можете легко открыть, но этот процесс может быть намного сложнее на портативном компьютере, который вы не можете открыть.
Как это устроено
Допустим, вы следовали передовым методам обеспечения безопасности и установили пароль для своей учетной записи Windows. Когда ваш компьютер загружается, кто-то должен будет ввести пароль вашей учетной записи Windows, чтобы использовать его или получить доступ к вашим файлам, верно? Не обязательно.
Человек может вставить съемное устройство, такое как USB-накопитель, CD или DVD с операционной системой на нем. Они могут загрузиться с этого устройства и получить доступ к живому рабочему столу Linux – если ваши файлы не зашифрованы, они могут получить доступ к вашим файлам. Пароль учетной записи пользователя Windows не защищает ваши файлы . Они также могут загрузиться с установочного диска Windows и установить новую копию Windows поверх текущей копии Windows на компьютере.
Вы можете изменить порядок загрузки, чтобы компьютер всегда загружался с внутреннего жесткого диска, но кто-то может войти в ваш BIOS и изменить порядок загрузки, чтобы загрузить съемное устройство.
Пароль микропрограммного обеспечения BIOS или UEFI обеспечивает некоторую защиту от этого. В зависимости от того, как вы настроите пароль, людям понадобится пароль для загрузки компьютера или просто для изменения настроек BIOS.
Конечно, если у кого-то есть физический доступ к вашему компьютеру, все ставки отключены. Они могут взломать его и удалить ваш жесткий диск или вставить другой жесткий диск. Они могут использовать свой физический доступ для сброса пароля BIOS – мы покажем вам, как это сделать позже. Пароль BIOS по-прежнему обеспечивает дополнительную защиту, особенно в ситуациях, когда люди имеют доступ к клавиатуре и USB-портам, но корпус компьютера заблокирован, и они не могут его открыть.
Как установить пароль BIOS или UEFI
Эти пароли устанавливаются на экране настроек BIOS или UEFI. На компьютерах с предустановленной Windows 8 вам потребуется перезагрузить компьютер и нажать соответствующую клавишу во время загрузки, чтобы открыть экран настроек BIOS. Эта клавиша отличается от компьютера к компьютеру, но часто это F2, Delete, Esc, F1 или F10. Если вам нужна помощь, посмотрите документацию на свой компьютер или Google, чтобы узнать номер модели и «ключ BIOS». (Если вы собрали собственный компьютер, поищите ключ BIOS вашей материнской платы.)
На экране настроек BIOS найдите параметр пароля, настройте параметры пароля по своему усмотрению и введите пароль. Вы можете установить разные пароли – например, один пароль, разрешающий загрузку компьютера, и второй, контролирующий доступ к настройкам BIOS.
Вы также можете посетить раздел “Порядок загрузки” и убедитесь, что порядок загрузки заблокирован поэтому люди не могут загружаться со съемных устройств без вашего разрешения.
На компьютерах с установленной ОС Windows 8 вам потребуется войдите в экран настроек прошивки UEFI через параметры загрузки Windows 8 . Мы надеемся, что экран настроек UEFI вашего компьютера предоставит вам вариант пароля, который работает аналогично паролю BIOS.
На компьютерах Mac перезагрузите Mac, удерживайте Command + R для загрузки в режиме восстановления и нажмите «Служебные программы»> «Пароль прошивки», чтобы установить пароль прошивки UEFI.
Как сбросить пароль прошивки BIOS или UEFI
Как правило, вы можете обойти пароли BIOS или UEFI с помощью физического доступа к компьютеру. Это проще всего сделать на настольном компьютере, который можно открывать. Пароль хранится в энергозависимой памяти, питаемой от небольшой батареи. Сбросьте настройки BIOS, и вы сбросите пароль – вы можете сделать это с помощью перемычки или вынув и снова вставив аккумулятор. следить наше руководство по очистке CMOS вашего компьютера для сброса пароля BIOS.
Очевидно, этот процесс будет сложнее, если у вас есть ноутбук, который вы не можете открыть. Некоторые модели компьютеров могут иметь пароли «черного хода», которые позволяют получить доступ к BIOS, если вы забыли пароль, но не рассчитывайте на это.
Вы также можете воспользоваться профессиональными услугами для сброса забытых паролей. Например, если вы установили пароль для прошивки на MacBook и забыли его, вам, возможно, придется посетить Apple Store, чтобы они исправили его для вас.
Пароли BIOS и UEFI не подходят большинству людей, но они являются полезной функцией безопасности для многих общественных и корпоративных компьютеров. Если у вас есть какое-то киберкафе, вы, вероятно, захотите установить пароль BIOS или UEFI, чтобы люди не могли загружаться в разные операционные системы на ваших компьютерах. Конечно, они могут обойти защиту, открыв корпус компьютера, но это труднее, чем просто вставить USB-накопитель и перезагрузить компьютер.
How Do I Remove A BIOS Or UEFI Password?
Computers have become an integrated part of our daily life. It’s more like an organ of our system now a days, less a digital assistant. We always safeguard our personal things and our computer or laptop tops this list. The protection of our PC and the data within it is all important to us. A mere windows or Linux account password would not hold back tech savvy peoples from booting your computer from other bootable devices and finally wiping out your data.
Why not data encryption? You are right. You can prevent anyone from accessing your computers precious data by encrypting your hard drives. Admittedly, it will not be able to block them to wipe out the same by installing another Operating system erasing the existing one. We need further security. Right? Bios or UEFI password gives you that extra layer of security.
A computer with valuable data and less security is vulnerable to the outsiders. But you can secure your computer with BIOS or UEFI password by providing extra protection. As I have mentioned earlier, Windows, Linux, or Mac passwords just prevent anonymous people from login into your operating system. But there are so many other ways to mess with your device. One can override your current operating system with a new one or get access to your sensitive data. BIOS or UEFI password is exactly the thing we need here.
The possible ways in which harm can happen to your computer
If someone with proper knowledge has physical access to your computer then they can easily restart your computer with a CD/DVD inside your dvd writer and boot from that, or they can insert a bootable USB device and do the same. A successful installation of a new operating system will be a few clicks away then. After that what they can do with your hard drives is really not that hard to assume.
But, if you lock your computer from BIOS using strong UEFI password then, they will not be able to access your BIOS to change the boot option priority before doing all these damages. It is really needed for those who use their system to keep a record of their financial, business data or even passwords. One can still open your system case and get your hard drive. And the hard drive can be used with another system to get your data.
I assume you have encrypted your hard drives already. Moreover, It’s always tough for anyone to steal your hard drive rather than just plugging in a bootable USB drive in it
How to set BIOS Password
For a pre-window 8 computer, to get into the BIOS screen you will need to restart your computer first. When boot-up process will be started, simply press the proper key to open up the BIOS screen. Usually, the keys are F2, Delete, Esc, F1 or F10. It varies based on a motherboard’s model.
· In the BIOS setting screen, under the security tab you will get the password option. You can set password for preventing one to enter to your BIOS settings from there. thankfully, you can also set a password to boot your system. On the lower right corner of the screen, you will find a list of keys, which will be required to navigate through the screen. When you have done setting your password, you can save and exit the BIOS settings.
How to set UEFI Password
Users, who own a windows 8 pc just go through the next few steps of this paragraph. It will surely guide you to set the UEFI password from its settings screen. But one thing needs to be noted. If you have upgraded your system to windows 8, means installed windows 8 operating system to your old PC; you may not have the UEFI settings. In this condition you have to access your BIOS settings.
· Firstly, go the settings option on your Windows 8 metro start screen.Then hit the ‘change PC settings’ button. Now select “General” from left hand panel and scroll down the page. Click on the restart now button under Advanced start-up. When the system will restart second time, it will show you the boot menu. Select the troubleshoot tile from the boot menu. Now go to the advanced options on the Troubleshoot page.Now you will get UEFI firmware settings tile in the advanced option page. You need to restart again to make any changes in UEFI settings.
Every single time from now on, the system will open with UEFI settings and hopefully it should provide you with a password option which will work alike BIOS passwords.
Make your personal computer even more professional one if you are running a cyber cafe or so. If you belong to the majority part, then start to think on it before it’s too late. It is your responsibility to keep secures your system and data.
On Windows 10 operating system provides login password or account password to protect important data of users. However, the drawback of these features is that it can be easily bypassed without resorting to the support of the 3rd party application.
- 5 tips for using the BIOS to help you master your computer
- How to set the password for the hard drive from BIOS / UEFI
On Windows 10 operating system provides login password or account password to protect important data of users. However, the limitation of these features is that it can easily be “bypassed” without having to rely on the support of the 3rd party application.
In other words, the login password or account password cannot protect the data stored on your Windows 10 computer safely, the best way you can apply is to set a BIOS password or a UEFI password.
So how to set a BIOS password or a UEFI password on your Windows 10 computer, please refer to the following article of Network Administrator.
1. What is the BIOS password and UEFI password?
The BIOS password or UEFI password will prevent the computer from booting if it does not enter the correct password. If the computer does not have a BIOS / UEFI password in case you forget your computer password, or do not know the password, someone just needs to use USB boot, CD boot or any other similar method to boot into the computer. You can simply understand that your computer login password or Microsoft account password is not enough to protect your computer.
UEFI password or BIOS password?
If you buy a pre-installed computer Windows 8, Windows 8.1 or Windows 10, chances are your computer supports UEFI, then you need to set up a UEFI password. And if your computer does not support UEFI, then you must definitely set the BIOS password for your computer. To check if your computer supports UEFI, refer to the steps here.
On different computers, the BIOS password setting or UEFI password will be different. This process depends on the manufacturer of the computer you are using, but it will basically look like the following.
2. Set BIOS password on Windows 10 computer
To set the BIOS password on your Windows 10 computer, follow these steps:
Step 1:
Open your computer and press Del, F2, Esc, F10 or F12 keys to access the BIOS. On different computers, the BIOS access key will be different.
Step 2:
After accessing the BIOS, navigate to Security or Password by using the arrow keys to navigate between items.
Step 3:
Under Security or Password section, search for the item named Set supervisor password, User password, System password or other similar options. After selecting the correct option, proceed to set a “strong” password.
Note:
- If your BIOS has both Supervisor password or User password options, then the best solution is to set a password for both the Supervisor password and User password.
- Supervisor password controls access to the installation utility. This means that if you do not have / do not enter the correct password, you will not be able to adjust the settings in the BIOS.
- User password controls access to the system at startup. This means that if you do not have / do not enter the correct password, you will not be able to log in to the computer.
- HDD password: Some machines also have the option to encrypt this hard drive, this is an extremely secure layer. Even if you remove the hard drive and carry it to another machine, you must still enter the correct password to decrypt the data on it.
– Some manufacturers can integrate additional security options, you can see as shown below. If your computer has these options available, make sure that these options are configured correctly to enhance the highest security.
Step 4:
Finally, don’t forget to save the changes to the BIOS settings. On most computers, you can press F10 to save the settings. Check the BIOS screen for the link or key to save the settings.
Restart your computer to see the BIOS password message.
3. Set UEFI password on Windows 10 computer
- Open UEFI firmware settings on your Windows 10 computer. The process of accessing the firmware installation on the computer lines will be slightly different.
- On the UEFI firmware screen, search for the Security or Password section . On some computers, you must navigate to the settings (Settings) section to see the Security option.
- After finding the right option to set the password. The next step is to set up the password and don’t forget to save the changes before exiting the UEFI installation window.
4. What happens after setting the BIOS password?
When your computer has just opened, on the screen will appear a window to enter the BIOS password or UEFI password. If the BIOS password or UEFI password is not entered correctly, users cannot access BIOS settings or UEFI settings.
For example, if you set the BIOS password or UEFI password, then you don’t need to use any third-party application, or any login screen password unlock tool to access your computer.
In fact, when the UEFI BIOS password and password are set, users cannot install any operating system on the computer.
And of course if someone accesses your computer with a BIOS password or UEFI password, they can access all the data on your computer by removing the hard drive or SSD drive, later That connects your computer to another computer.
In addition, it is possible to reset the BIOS password or UEFI password if someone has physical access to your computer. However, this process is not easy, especially for notebooks or tablets (tablets).
This means that the BIOS password or UEFI password will help strengthen the security layer for your data, but not the absolute safe solution for data protection.
Refer to some of the following articles:
- Unlock hidden features on Windows 10 with some Registry tricks
- Instructions for fixing errors do not turn off Windows 10 computers and laptops
- Instructions to transfer Microsoft account to Local account on Windows 10 / 8.1
By Sarah | Follow | Last Updated December 18, 2020
Summary :
A good way to secure your computer is to set a BIOS or UEFI password. This is able to help you prevent unauthorized access to your operating system. The password setting is needed especially when there’s confidential or private data on a computer. Today, I’m going to tell you how to set the BIOS or UEFI password on Windows step by step.
What Is BIOS or UEFI Password
As everyone knows, a password helps a lot to prevent people from accessing your device without your permission. This is a good way to control access and protect privacy. By setting a BIOS or UEFI password, you can:
- Prevent people from logging into the certain operating system.
- Prevent booting from any removable devices.
- Prevent others from changing BIOS or UEFI settings.
- Prevent others from installing another operating system.
- …
Yet, the access to other systems is still available.
BIOS or UEFI Password vs. Login or Account Password
Some people may ask what the difference is between the BIOS or UEFI password and the login or account password since both of them are used to prevent malicious access and protect data.
- Indeed, though the login password or account password is built in the Windows to help ensure data security, it can be easily bypassed by using third-party tools. What’s worse, in some cases, even the third-party tool is not necessary.
- Well, the BIOS or UEFI password is lower-level password, which can’t be bypassed by people. So you can enjoy high data security through BIOS or UEFI password setting.
How to Set a BIOS or UEFI Password on Windows 10
If your PC is pre-loaded with Windows 8, Windows 8.1 or Windows 10, it is very likely that it supports UEFI. Otherwise, it will be BIOS for sure. The BIOS or UEFI password setting process varies a little from computer to computer, manufacturer to manufacturer, and system to system. Yet, the basic steps are the same. Here, I’ll show you how to set a BIOS or UEFI password on a Win10 computer.
When you need to recover missing files on Windows 10, the methods mentioned in this article may become your life-saving straw.
Set a BIOS Password
- Turn on your computer and press corresponding button (usually Del, F2, Esc, F10, or, F12) to enter BIOS. If you are not sure about the key, you can look at the screen carefully when computer boots or contact the manufacturer.
- Search for Security or Password section in the BIOS setting. You can navigate between different sections by making use of the arrow keys.
- Under the Security or Password section, you should look for any entry similar to:
- User password
- System password
- A general password
- Supervisor password
- Master password for the hard drive
- Click on the correct password option to set a strong password.
If you find more than one password under the Security or Password section (for instance, you find both Set User Password and Set Supervisor Password), you may set a password for each to enhance security.
Set a UEFI Password
Step 1: Enter UEFI firmware settings. The process to enter UEFI firmware settings is totally different from accessing BIOS. You should do the following things to access UEFI firmware settings:
- Open Settings
- Select Update & Security.
- Shift to Recovery tab in the left-hand panel.
- Find Advanced startup and click on the Restart now button here.
- Click on the Troubleshoot option in the Choose an option window.
- Click on the Advanced options in the Troubleshoot window.
- Click on the UEFI Firmware Settings option in the Advanced options window.
- Click on the Restart button in the UEFI Firmware Settings window.
- Wait for the restart and then you’ll enter UEFI firmware settings.
Step 2: Look for Security or Password section (sometimes, the Security option may be included in the Settings section).
Step 3: Look for the password entry.
Step 4: Click on the correct password option to set a strong password.
ABOUT THE AUTHOR
Position: Columnist
Sarah is working as editor at MiniTool since she was graduated from university, having rich writing experiences. Love to help other people out from computer problems, disk issues, and data loss dilemma and specialize in these things. She said it’s a wonderful thing to see people solving their problems on PC, mobile photos, and other devices; it’s a sense of accomplishment. Sarah likes to make friends in life and she’s a huge music fan.
Password protection for the BIOS (or BIOS equivalent) and the boot loader can prevent unauthorized users who have physical access to systems from booting using removable media or attaining root privileges through single user mode. But the security measures one should take to protect against such attacks depends both on the sensitivity of the information the workstation holds and the location of the machine.
For instance, if a machine is used in a trade show and contains no sensitive information, than it may not be critical to prevent such attacks. However, if an employee’s laptop with private, unencrypted SSH keys for the corporate network is left unattended at that same trade show, it could lead to a major security breach with ramifications for the entire company.
On the other hand, if the workstation is located in a place where only authorized or trusted people have access, then securing the BIOS or the boot loader may not be necessary at all.
The following are the two primary reasons for password protecting the BIOS of a computer [1] :
Preventing Changes to BIOS Settings — If an intruder has access to the BIOS, they can set it to boot from a diskette or CD-ROM. This makes it possible for them to enter rescue mode or single user mode, which in turn allows them to start arbitrary processes on the system or copy sensitive data.
Preventing System Booting — Some BIOSes allow password protection of the boot process. When activated, an attacker is forced to enter a password before the BIOS launches the boot loader.
Because the methods for setting a BIOS password vary between computer manufacturers, consult the computer’s manual for specific instructions.
If you forget the BIOS password, it can either be reset with jumpers on the motherboard or by disconnecting the CMOS battery. For this reason, it is good practice to lock the computer case if possible. However, consult the manual for the computer or motherboard before attempting to disconnect the CMOS battery.
Other architectures use different programs to perform low-level tasks roughly equivalent to those of the BIOS on x86 systems. For instance, Intel ® Itanium ™ computers use the Extensible Firmware Interface ( EFI ) shell.
For instructions on password protecting BIOS-like programs on other architectures, refer to the manufacturer’s instructions.
The following are the primary reasons for password protecting a Linux boot loader:
Preventing Access to Single User Mode — If attackers can boot the system into single user mode, they are logged in automatically as root without being prompted for the root password.
Preventing Access to the GRUB Console — If the machine uses GRUB as its boot loader, an attacker can use the use the GRUB editor interface to change its configuration or to gather information using the cat command.
Preventing Access to Non-Secure Operating Systems — If it is a dual-boot system, an attacker can select at boot time an operating system, such as DOS, which ignores access controls and file permissions.
The GRUB boot loader ships with Red Hat Enterprise Linux on the x86 platform. For a detailed look at GRUB, consult the chapter titled The GRUB Boot Loader in the Red Hat Enterprise Linux Reference Guide .
When prompted, type the GRUB password and press [Enter] . This returns an MD5 hash of the password.
Next, edit the GRUB configuration file /boot/grub/grub.conf . Open the file and below the timeout line in the main section of the document, add the following line:
with the value returned by /sbin/grub-md5-crypt [2] .
The next time the system boots, the GRUB menu does not allow access to the editor or command interface without first pressing [p] followed by the GRUB password.
Unfortunately, this solution does not prevent an attacker from booting into a non-secure operating system in a dual-boot environment. For this, a different part of the /boot/grub/grub.conf file must be edited.
Look for the title line of the non-secure operating system and add a line that says lock directly beneath it.
For a DOS system, the stanza should begin similar to the following:
| Warning |
|---|
| [1] |