How to disable uefi in samsung bios. Disable UEFI Secure Boot in BIOS
Let's consider BIOS settings budget laptop ASUS X550LA (90NB02F2-M00140).
Bookmark Main. This contains information about the BIOS (AMI), the installed energy-efficient processor Intel Core i3-4010U, volume random access memory, serial number, system date and time, and set access level.
Bookmark Advanved. There are boot settings, the ability to enable/disable additional processor options: Intel Virtualization Technology, Intel AES-NI, VT-d. Access to settings SATA, integrated graphics, USB, network settings etc.
Section SATA Mode Selection, on the first port we have HDD HGST HTS545050A7E680, on the second DVD optical drive: HL-DT-ST DVDRAM GU71N manufactured by Hitachi-LG Data Storage. Working in AHCI mode.
Bookmark Security. In this section you can set a login password for hard drive: for users and administrator.
For installation operating system Windows 7 instead of the pre-installed Windows 8, you need to disable the Secure Boot menu in the Security section, and then in the Boot section enable Launch CSM > Enabled.
Launch CSM (Launch Compatibility Support Module) is a “Compatibility Mode Launch Support Module”. Selecting Enabled - activates a special extended compatibility mode. This mode allows you to download and install different versions older operating systems, which already include Microsoft Windows 7.
Secure Boot in Bios with UEFI support
Protocol secure boot Secure Boot, based on special certified keys available only for Windows 8 and higher, will not allow you to install the operating system on your computer from any installation media, except for the carrier with “eight” or “ten”. Therefore, to start installing another system on your desktop computer or laptop, you will need disable Secure Boot in UEFI-BIOS.
The “Secure Boot” parameter, responsible for disabling the secure boot protocol, is in most cases located in the “Security”, “System Configuration” or “Boot” sections. But I want to say that to install, for example, Windows 7 on new laptop with UEFI-BIOS it will not be enough to disable only “Secure Boot” in UEFI-BIOS; you also need to enable compatibility mode with other operating systems.
The parameter responsible for this is called differently for all manufacturers: “Launch CSM”, “CMS Boot”, “UEFI and Legacy OS”, “CMS OS”. And it is located, overwhelmingly, in the “Advanced” section, and in it, in the “Boot Mode” or “OS Mode Selection” subsections.
On a laptop:
How to disable Secure Boot and UEFI on a Toshiba laptop
When booting the laptop, press the F2 key and enter the UEFI-BIOS. Go to the “Security” section and find the “Secure Boot” parameter, switch it to the “Disabled” position.
In this simple way we were able to disable Secure Boot in UEFI-BIOS. But that is not all. Now you need to enable compatibility mode for other operating systems. Go to the “Advanced” section, find the “System Configuration” subsection and go into it.
Here we select the “Boot Mode” or “OS Mode Selection” parameter, and switch it from the “UEFI OS” position (possibly “UEFI Boot”) to the “CSM Boot” position (possibly “UEFI and Legacy OS” or “CMS OS”) .
For the changes to take effect, press F10 and confirm saving the changes by selecting “Yes”. Reboot. Now we can load any operating system onto our laptop.
How to disable Secure Boot and UEFI on an HP laptop
Sometimes things are not so obvious. For example, on some HP Pavillion laptop models, you need to perform several additional operations to disable Secure Boot.
When booting the laptop, press the F10 key (possibly ESC, then F10) and enter the UEFI-BIOS. We go to the “System Configuration” section, find the “Boot Options” subsection and go into it.
Find the “Secure Boot” option and switch it to the “Disabled” position. On the contrary, we switch the “Legacy support” compatibility mode parameter with other operating systems to the “Enabled” position.
We respond to the warning with “Yes”.
For the changes to take effect, press F10 and confirm saving these changes by selecting “Yes”. Reboot your computer. After the reboot, a warning window appears with the warning “A change to the operating system secure boot mode is pending...”. In English, we are asked to enter code 8721 on the laptop keyboard (in your case, the code will, of course, be different) and press Enter. After this, changes in the UEFI-BIOS settings will be saved and the laptop will reboot again.
When you turn on your HP laptop, press the ESC key and you will be taken to the start menu. In it, select “F9 Boot Device Options” and, going to the boot menu, select the installation flash drive (already connected) or the installation DVD with the operating system distribution.
How to disable Secure Boot and UEFI on an Asus laptop
(Aptio Setup Utility)
When booting the laptop, press the DELETE key and enter the UEFI-BIOS. We go to the “Security” section and, having found the “Secure Boot” parameter, switch it to the “Disabled” position.
Then go to the “Boot” section and, having found the “Fast Boot” parameter, switch it to the “Disabled” position.
For the changes to take effect, press F10 and confirm saving the changes by selecting “Yes”. Restarting the laptop. We enter the UEFI-BIOS again. We go to the “Boot” section and, having found the “Launch CSM” parameter, switch it to the “Enabled” position.
Press F10 again and confirm saving the changes by selecting “Yes”. Reboot. When turned on Asus laptop Press the ESC key and get to the boot menu. In it, select the installation flash drive (already connected) or the installation DVD with the operating system.
How to disable Secure Boot and UEFI on a Samsung laptop
(Aptio Setup Utility)
When booting the laptop, press the F2 key and enter the UEFI-BIOS. Go to the “Boot” section and find the “Secure Boot” parameter.
Switch it to the "Disabled" position.
At the warning that the computer may boot with an error, press Enter.
In the same section below, the “OS Mode Selection” parameter will appear.
Switch it to the “CMS OS” or “UEFI and Legacy OS” position.
A warning will appear again about the possibility of the next boot of the laptop with an error. Press Enter. For the changes to take effect, press the F10 key and confirm saving the changes by selecting “Yes”. Restarting the laptop. Now we can load any operating system onto our laptop; if that doesn’t work, please contact ComprayExpress.
How to disable Secure Boot and UEFI on an Acer Aspire laptop
(InsydeH20 Setup Utility)
Press the F2 key when booting the laptop and enter the UEFI-BIOS. Here we go to the “Main” section and, having found the “F12 Boot Menu” parameter, switch it to the “Enabled” position. With this action, we allowed the laptop boot menu to appear when pressing the F12 key.
Next, go to the “Security” section and, having found the “Set Supervisor Password” parameter, press the Enter key. In the top field, set the password (we will reset it later) and press Enter. In the lower field, enter the same password and press Enter again.
At the “Changes have been saved” message, press the Enter key again.
For the changes to take effect, press the F10 key and confirm saving the changes by selecting “Yes”. Restarting the laptop. Since it makes sense to remove the password we previously set (the ability to disable/enable “Secure Boot” will remain), again using F2 we enter the UEFI-BIOS, go to the “Security” section and, having found the “Set Supervisor Password” parameter, press the Enter key . In the top field, enter the password we previously set and press Enter. In the second and third fields, do not enter anything, just press Enter.
At the “Changes have been saved” message, press Enter again. That's all! The password has been reset, but the ability to disable/enable Secure Boot remains. For the changes to take effect, press the F10 key and confirm saving the changes by selecting “Yes”. Reboot. Now we can load any operating system onto our laptop.
On a desktop computer:
How to disable Secure Boot and UEFI on Asus motherboard
When booting the laptop, press the DELETE key (possibly F2) and enter the UEFI-BIOS. Press F7 to go to “Advanced Mode”.
We go to the “Boot” section, find the “Secure Boot” subsection there and go into it.
Switch the "Secure Boot" option to "Other OS".
Switch the "Launch CSM" option to "Enabled".
In the additional options that open, select “Boot Device Control” and switch to the “Legacy OpROM only” or “UEFI and Legacy OpROM” position.
Go to the “Boot from Storage Devices” parameter and switch it to the “Legacy OpROM first” or “Both, Legacy OpROM first” position.
With these steps we were able to disable Secure Boot and enable advanced boot mode. For the changes to take effect, press the F10 key and confirm saving the changes by selecting “Yes”. Reboot. Now we can load any operating system onto our computer.
How to disable Secure Boot and UEFI on Asrock motherboard
When booting the computer, press the DELETE key (possibly F2) and enter the UEFI-BIOS. Go to the “Security” section and, having found the “Secure Boot” parameter, switch it to the “Disabled” position.
For the changes to take effect, press the F10 key and confirm saving the changes by selecting “Yes”. Reboot. Now you can load any operating system onto your PC.
Press the DELETE key when booting the PC and enter the UEFI-BIOS. We go to the “BIOS Features” section and, having found the “Windows 8 Features” parameter, switch it to the “Other OS” position.
Then switch the “Boot Mode Selection” parameter to the “Legacy only” or “UEFI and Legacy” position. And finally, switch the “Other PCI Device ROM Priority” parameter to the “Legacy OpROM” position.
To save the changes, press the F10 key and confirm saving the changes by selecting “Yes”. Reboot. Now we can load any operating system onto our computer.
How to disable Secure Boot and UEFI on MSI motherboard
When booting the PC, press the DELETE key and go to the UEFI-BIOS. Here we go to the “SETTINGS” section, go to the “Boot” subsection, and having found the “Boot Mode Select” parameter, switch it to the “Legacy + UEFI” position.
For the changes to take effect, press the F10 key and confirm saving the changes by selecting “Yes”. Reboot. Now we can load any operating system onto our computer.
Write in the comments if it helped you this instruction solve the problem with installing the operating system on Personal Computer or laptop.
If you have difficulties setting up the BIOS, you can contact us for advice or help from a computer technician. Call:
Vitaly Voshchatinsky. 2 years ago:
Thank you very much for the work done. But in my case Acer laptop Aspire there is simply no option to change the BOOT MODE. Is there a solution to this issue?
Zoro Vitaly Voshchatinsky. 2 years ago:
Good day! And I have such a miracle)) Maybe they found a solution?
Vitaly Voshchatinsky Zoro. 2 years ago:
IN service center"vysera". oh acera. I was told. that this model has support only for Windows 10. I invited a guy through an advertisement and within 3 hours he installed Ubuntu 17 for me, but the computer does not turn off. then everyone will slow down. But you can physically turn off the power only by pressing the turn button.
Andrey. 2 years ago:
laptop acer aspire. I set a password and boor mode was not unlocked, only secure boot... I don’t know what to do next Max Chu
Andrey. a year ago:
Same problem. I don’t know what to do. Maybe only flashing the BIOS will help. but again how to do it. 10 does not allow me to install another version.
Denis Kuptsov. 2 years ago:
DUH THANK YOU SO MUCH!!! I’ve been changing Windows for myself and my friends for a long time! but once I decided to reinstall it on my laptop! and I thought I broke my computer)) damn what would I do without you))) I love you)))
Ivan Hello. 2 years ago:
Damn thank you! At least I turned off this security! I’m at work right now, so I can’t test whether the seven will work, but after my shift I’ll try.....Thank you very much. The site has been bookmarked.....
Dalai Lama. 2 years ago:
Thank you Bro for your efforts to help unreasonable users! I'm tired of looking for answers! Your article is great!
Irina Yusupova. 2 years ago:
I struggled and couldn’t figure it out, I already scoured the entire Internet until I found this article - it’s quite accessible and clearly described. Thank you.
Stanislav. 2 years ago:
Thank you very much, the detailed article for HP laptops helped, I suffered for a long time, and then with your help everything was done in 5 minutes, and now Windows 7 is already completing the installation, thank you!
Stanislav. 2 years ago:
Thanks for the detailed instructions! I racked my brain for a very long time, but here it turned out to be extremely simple! The site has been bookmarked, so to speak, for the future!
Paul. 2 years ago:
As luck would have it, I myself had this problem after I activated tens from 8ki. But the necessary programs did not work in it, I decided to install 64-bit seven, but, like many, I encountered the notorious security boot, which did not allow me to do this. Toshiba instructions helped, thanks
Simona Markina. 3 years ago:
I wanted to install Linux on my new laptop. But nothing worked with this new BIOS for me. The article helped one hundred percent. Now I have Ubuntu.
Dmitry Vernik. 3 years ago:
I just have ASUS! Thanks for the article, it was very helpful! I've been looking for detailed instructions for a long time!
Ivan. 3 years ago:
The article saved me, everything is described in great detail and shown in the photo. After reading I was able to install Win 7 instead of the pre-installed Win 8.1)))
Yuri Shokin. 3 years ago:
It’s good when there are such detailed articles and guides on Bios functions. I didn’t understand how to disable secure boot on lenovo laptop, made by analogy with other brands. With such timely tips, I managed to reinstall the operating system quickly, thank you for the valuable advice.
Evgeniy Maslennikov. 3 years ago:
It’s terrible, guys, there are simply no other words to describe how I suffered over the past weekend, thank you very much for the advice!
Ivan. 3 years ago:
Respect to the author! Finally, I came across an article that properly describes how to disable Secure boot in different UEFI BIOSes. Otherwise you’ll spend forever combing the entire Internet until you get the full picture. Thank you, it made it a lot easier reinstalling Windows 8.
Ivan Shchepelin. 3 years ago:
Thank you! I’m completely new to this, but with your recommendations and with the help of my friend, we managed to install Windows 7 on an Acer laptop)
Hello, dear readers! Today we will talk about one seemingly complex topic, which will sound like this: UEFI Boot - what is it? and how to disable UEFI in BIOS.
Of course, for the average user, all these names and abbreviations mean nothing, but nevertheless, when buying modern desktop computers and laptops, you will still come face to face with these concepts.
Yes, friends, this is the same settings section on a blue background, which you can enter at the very beginning when you turn on the computer. Here's a picture to refresh your memory:
Many more enthusiasts here have tried to play with the voltage and frequency of the main processor in order to increase the power of their machine. So, the BIOS microprogram was replaced by another, more modern one.
And as you already understood, it is called UEFI. Among the new innovations in it, we can note support high resolutions screen, very large disks and working with a mouse.
If you read all the lines above and did not understand anything at all, then watch a short video to reinforce the topic:
So, it should definitely be said that a full-fledged UEFI system has not yet been implemented in all modern computers. But some of its new functions, hitherto unseen, have been successfully implemented into the old BIOS shell.
And one of them is the so-called UEFI Boot (full name Secure Boot). The purpose of its work is to prevent substitution of the system boot source, thereby reducing the use of unlicensed software.
That is, the picture turns out to be such that now we will not be able to boot, for example, from a flash drive or a third-party drive. Indeed, in this situation, they simply will not be in the list of available devices:
But really, decide this problem it is possible and very easy. To do this you need to make a couple of settings and that’s it. So let's get to work. So to speak, enough theory.
And in order to disable UEFI functions in the BIOS, you must immediately enter it. As mentioned above, to do this you need to press a certain key combination immediately after turning on the computer.
Thus we disabled main function UEFI protection from third-party bootloaders. Then you should go to the “Boot” section and set the parameters as in the screenshot below:
After this, we should have a list of available devices. Now, by changing their position in the list, you can manipulate download sources. Again, using the author’s example, this can be done with a keyboard shortcut Fn+F5/F6:
Well, after all the parameters have been entered, all that remains is to save the changes. This is done in the "Exit" menu by selecting "Exit Saving Changes":
That's all, my friends, now you know exactly the answer to the question: UEFI Boot - what is it and how to disable UEFI in the BIOS. If you have any questions, feel free to ask them in the comments.
Well, if you suddenly want to learn more about UEFI BIOS, then watch a short video where this topic opened more widely.
Windows 8, then you are sure to encounter several problems that will prevent you from installing Windows 7 instead of Windows 8.
Problem 1:
Unfortunately, it is not always possible to install Windows 7 on drives with GPT content - some laptops simply do not allow you to install Windows 7 with UEFI boot enabled. Can't install Windows 7 on GPT disks from a non-original disk (for example, from a disk containing images with different editions of Windows 7), as well as from “non-UEFI” bootable flash drive(you can create a flash drive with a UEFI bootloader, but not every user can do this). Therefore, the easiest way is to deactivate the above item(s) UEFI-boot (and/or Secure-boot) in the BIOS of the laptop or computer motherboard and then Windows 7 will install without problems. Activating "UEFI-boot" allows you to create a service UEFI partition on the target drive with a GPT (GUID Partiton Table) table of contents. Accordingly, deactivation allows you to install Windows 7 on disks with MBR partitioning.
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Examples
In some cases, you can access the BIOS settings from the service tool. Windows menu 8. You can get into it by performing a regular reboot while holding down the Shift key.
Problem 2:
As mentioned above, pre-installed Windows 8 is most often installed on drives with GPT contents. If you are experiencing "Problem 1" from this FAQ, then in order to install Windows 7, the disk must be converted to a traditional MBR (Master Boot Record). You can convert GPT to MBR during Windows installations 7, namely:At the moment when the installation wizard prompts you to select a drive/partition to install the operating system, you need to use the combination Shift keys+ F10, which will open the command prompt.
Command Prompt opens by pressing Shift + F10 during Windows installation
On the command line:
- Type "diskpart" and press ENTER.
- At the diskpart command prompt, type "list disk" without quotes and press "ENTER".
- Write down the number of the disk you want to convert to an MBR disk.
- At the diskpart command prompt, type without quotes: "select disk
" (Where - disk number) and press the "ENTER" key. - Type the command "clean" to quickly clean the disk and remove all partitions
- At the diskpart command prompt, type "convert mbr" without quotes and press "ENTER".
Additional information about pre-installed Windows 8:
To install Windows 7 instead of the pre-installed Windows 8, you first need to go into the BIOS, in the "Security" section disable "Secure boot", then in the "Boot" section enable "Launch CSM"- change from "Disabled" to "Enabled" (Launch CSM in this case stands for Launch Compatibility Support Module (activating compatibility mode)). After that, save the settings and exit the BIOS. Then you need to go into the BIOS again and in the “Boot” section change the boot priority - select the optical drive as the “First boot device”.“Composter” touched on subtle matters that connect the past with the present. In the computer world this is called compatibility. The inquisitive mind of the experimenter wants to know: what will happen if you disobey your mother’s manual and refuse compatibility? In other words: have you mastered the material for performing the tasks well? motherboard Clear CMOS operations? If that's okay, follow us, dear readers. We're starting to experiment with the Aptio Setup Utility, which is securely built into the UEFI BIOS from American Megatrends.
Don't say GOP if you don't know how it will end
It’s easy and simple with laptops: when entering Setup, they cheerfully report on which version of GOP is supported on this platform. Let us remind those who have only recently joined us: Graphics Output Protocol- This is a new product that replaced VGA BIOS in favor of UEFI.
Fig 1.CSM as a compatibility technology
opens additional UEFI BIOS menu options
The situation is more complicated with desktop systems. You can install almost any suitable video card into the expansion slot. And if we have a video card that does not support GOP, and we turn off the CSM mode and exit Setup with a record, then after the reboot we will get a fatal error - sound signal about the absence of video (1 long and three short beeps). Then a pause and the next reboot, during which the BIOS turned on CSM without permission and warned us about it with the following message:
The VGA Card is not supported UEFI Driver.
CSM (Compatibility Support Module) settings have been changed for better compatibility.
What happens during POST procedures? Obviously, if the VGA BIOS does not support UEFI, then the motherboard firmware cannot interact with the video card resources via the GOP protocol. Ignore " inconvenient» Legacy VGA BIOS and the motherboard firmware cannot work directly with the video controller either, since operations with the graphics controller require very specific support and the motherboard’s UEFI BIOS is not ready to support all types of graphics controllers in advance.
CSM is a bridge between past and future
The only solution acceptable for compatibility between old and new is Compatibility Support Module technology. Only it is capable of creating a “bridge” between UEFI GOP and Legacy VGA BIOS.
Fig 2.The ban on CSM technology does not allow
editing other CSM menu options
The algorithms of the Aptio Setup utility convince us of this. If CSM mode is enabled, all other options on this page are available. When you turn off compatibility mode, other options become unavailable. And if you exit Setup after saving the changes, the platform will not be able to initialize the video and will generate the error described above.
Obviously, the issue concerns not only graphics. If we install, for example, a Storage controller whose firmware does not support UEFI, then if CSM mode is disabled, the disks connected to it will remain inaccessible.
