Hello, dear readers! Today we will talk about one difficult at first glance, which will sound like this: UEFI BOOT - what it is And how to turn off the UEFI in the BIOS.
Of course, for a simple user, all these names and abbreviations do not talk about anything, but nevertheless, buying modern desktops and laptops, you will still come face to face with these concepts.
Yes, friends, this very section settings on a blue background, in which you can enter at the very beginning when you turn on the computer. Here is a drawing for refreshing memory:
More many enthusiasts tried to play with a voluntary and frequency of the main processor to increase the power of your car. So, another, more modern one came to replace the bios firmware.
And as you already understood, it is called UEFI. From new innovations in it, it is possible to note the support of high screen resolution, discs of a very large volume and work with the mouse.
If you read all the lines above and did not understand anything at all, then see the short video to secure the topic:
So, it must be said that the full UEFI system is still implemented yet not in all modern computers. But some of its new features, have not been seen, successfully implemented in the old BIOS shell.
And one of them, the so-called UEFI BOOT (Full SECURE BOOT name). The meaning of its work is to prevent the submenu of the system of loading the system, thereby reducing the use of unlicensed software.
That is, it turns out such a picture that now we will be able to boot, for example, from a flash drive or third-party disk. After all, with such a scenario, there will simply be on the list of available devices:
But in fact, it is possible to solve this problem and is very easy. To do this, you need to make a couple of settings and all the business. Therefore, let's go to work. So to speak, enough theory.
And in order to disable the UEFI functions in the BIOS, you must immediately log in to it. As mentioned above, it is necessary to press a certain key combination immediately after the computer is turned on.
Thus, we disabled the main function of the UEFI protection from third-party loaders. Then go to the "BOOT" section and set the parameters as in the screenshot below:
After that, we must have a list of available devices. Now changing their position in the list, you can manipulate the sources of download. Again, on the example of the author, it can be done by a combination of keys Fn + F5 / F6:
Well, after all the parameters made, it remains only 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 it is and how to turn off UEFI in BIOS. If the questions remained, boldly ask them in the comments.
Well, if you suddenly want to learn about UEFI BIOS much, then see a short video, where this topic is revealed more widely.
The mass transition to UEFI (Unified Extensible Firmware Interface) has already begun. Microsoft requires to use this interface on all computers that will be supplied with Windows 8. More specifically, we are talking about UEFI with the Secure Boot function. At the same time, without problems, only the "eight" can work on such a PC: nor Windows XP, nor "seven" can be installed on a UEFI machine without additional manipulations. With the Linux Live or Windows flash drive, it will not be possible to boot too. What exactly can happen if you try to start with the installation flash drive on the Sony VAIO laptop, shown in the picture at the top. And on this problems with UEFI do not end. Each manufacturer of hardware components at its discretion configures UEFI, thereby creating unnecessary difficulties for the user. Laptop IdeaPad from Lenovo and could not recognize the same flash drive as a bootable media. In this case, Lenovo is nothing to reproach: The fact is that the loading flash drive is formatted in the NTFS file system, and the UEFI does not support the load from such carriers. If you connect the same drive to the ELITEBOOK laptop from HP, it will boot without problems and allows you to install Windows. The problem is that all data that occurred on the ELITEBOOK disk would be removed after installation.
Each configures in its own way.
Are you confused? Nothing amazing: UEFI with the Secure Boot function sets new rules for installing and loading operating systems, and hardware manufacturers interpret these rules in their own way, which creates additional difficulties for the user. Therefore, within the framework of this article, we set a goal to eliminate confusion around the UEFI. On the example of laptops from the main manufacturers, we will tell you how the UEFI works, which role is assigned the Secure Boot features, how to bypass the "traps" set by the new interface and what is needed to use the boot flash drives without fear of any devastating effects.
How UEFI works
UEFI is loaded strictly in accordance with the established rules. If the OS does not support UEFI, the BIOS emulation mode is activated. The BIOS-based PC boot process is fairly simple: after pressing the power button, the BIOS starts, which checks the equipment status and loads the firmware - simple drivers for individual hardware components. After that, the BIOS performs the OS bootloader search and activates it. That in turn loads the operating system or displays the list of available OS.
UEFI-based computers are loaded in a similar way only until the download parameters are found. After that, everything happens otherwise. UEFI has its own OS bootloader with integrated start-up managers installed systems. For him, a small section (100-250 MB) is created on the disk, formatted in the FAT32 file system, which is called Extensible Firmware Interface System Partition (system section of the expandable firmware interface, ESP). It contains hardware components drivers to which the running operating system can access. The general rule is: with the exception of DVD, UEFI can only be loaded from the media formatted in the FAT32 file system.
UEFI - Complex mechanism
ESP has its advantages: thanks to the UEFI drivers and the OS bootloader, Windows starts faster and more adequately responds to critical drivers. But the UEFI interface imposes and restrictions: it allows you to install OS only on hard drives that are marked according to GPT. The latter is not supported by any BIOS version, since, in contrast to the traditional markup scheme (MBR), uses the address sectors 64 bits long. In addition to Windows 8, the UEFI interface is supported only by 64-bit versions of Windows Vista and 7, as well as Linux with a kernel 3.2 and above. Moreover, for PCs certified to work with the "eight", Microsoft prescribes the use of the Secure Boot option. In this mode, UEFI launches only the confirmed OS loaders that contain the Microsoft digital signature drivers.
Along with Windows 8, only the shim loader (Linux) has drivers with the necessary for Secure Boot signatures. In other OS, they are missing. Therefore, if you want to install on a similar computer, in addition to the "eight" also Windows 7 or Vista, you must open the UEFI menu and disable Secure Boot. If you select an incompatible with UEFI, you will need to use Compatibility Support Module (Compatibility Support Module, CSM), which can be enabled in UEFI. Unfortunately, manufacturers use various UEFI versions, and sometimes it is difficult to understand how to disable Secure Boot and go to BIOS emulation mode. We will consider these questions further.
UEFI-based PC boot process
Depending on the configuration, the UEFI either independently loads the computer or switches to the standard BIOS emulation mode. Only after that the Windows boot manager is launched.
Installing Windows on a PC with UEFI and Secure Boot Function
On a PC with Windows 8 based on UEFI Secure Boot, other version of the OS can be installed only under certain conditions. The user must select the correct loading mode in advance and prepare the installation flash drive appropriately.
Enable BIOS Emulation Mode
Full confusion: The method of transition to the BIOS emulation mode depends on the UEFI version. On Sony Vaio (1), you must activate the "Legasy" option, on ASUS Zenbook (2) - "Launch CSM".
UEFI Setup
Each manufacturer uses its version of UEFI in laptops and ultrabooks. At the same time, it opens access not to all the necessary functions. Often, when the PC or Lapplet is loaded, the button is not displayed, with which you can call the UEFI settings menu. We offer to do as follows: In the Metro interface, go to the "Parameters | Changing computer settings »On the sidebar and activate the" General | Special download options. After restarting, the OS boot manager will appear, which will allow you to open the UEFI menu. An exception is UEFI from HP, where this option is absent. The following will help here: While booting, hold down the "ESC" key. In any case, it is necessary to inquiry at first which button allows you to enter the UEFI menu. If you change the download mode to CSM or Legasy BIOS to boot from the emergency flash drive, after the recovery operation, you must again switch from CSM to UEFI, otherwise Windows 8 will not start. But here there are exceptions: Aptio Setup Utility on ASUS computers activates the UEFI automatically in the absence of a bootable carrier compatible with the BIOS, so it is enough to disconnect the USB flash drive.
SECURE BOOT Turning off if in addition to the "eight" you want to set the 64-bit version of Windows Vista or 7. Sometimes the so-called hybrid mode is maintained, as in HP devices, in which the UEFI can be downloaded from all loading media and, if necessary Switch to BIOS mode. In a widespread version of UEFI InsyDeh2O, it depends on whether the laptop manufacturer has the ability to disconnect the Secure Boot or not. In Acer Aspire S7, this function is not available, and to deactivate it, you need to switch from the UEFI to the BIOS mode and back.
Difficulty recovery
With the advent of UEFI, manufacturers changed the methods of working with the OS recovery system. The combination of the "Alt + F10" keys, which was previously used, for example, in Acer models, no longer works or fixed after other functions. And the "F9" button downloads not ASUS Preload Wizard on the new Zenbook, but the Windows 8 recovery program with the extended download menu.
The recovery mode of VAIO CARE in Sony laptops can be opened in a similar menu by selecting the "Control Panel | Troubleshooting | Restoration. " But if you start the OS boot manager and select "Diagnostics | Restore "or" Return to the original state ", the device will ask you to insert the original disk Windows 8, which is not included in the delivery. On Acer-models, the backup is performed using a pre-installed Windows program, and the recovery from the backup is carried out from an external USB media. However, you must first go to the UEFI menu and specify such a disc as a boot.
Switch to the UEFI menu from Windows
If the Windows 8 start function is activated with advanced settings, then by selecting "Diagnostics" (1) and "Advanced Parameters" (2), you can access the "UEFI" parameters menu (3).
Useful UEFI functions
Each laptop manufacturer uses different versions of the UEFI interface and implements it in the system in accordance with its views. From the table, broken by models, you will learn where the main functions of the UEFI are located.
Solving Problems: Disable Secure Boot
In some cases, Secure Boot cannot be deactivated directly. In Acer Aspire S7, for example, this feature is not available. But if you switch to "Legasy Bios" (1) and again back (2), Secure Boot will be disabled.
In hybrid mode, everything is possible
In the UEFI version of HP, there is support for the hybrid mode, in which, depending on the loading medium, one of two modes is launched - either UEFI or CSM. In this case, the Secure Boot function is turned off automatically.
Running from flash drive
Old flash drives for emergency download and recovery work only in BIOS mode. We will make them compatible with UEFI.
USB flash drives are more and more used as bootable media to restore or install Windows. This is due to the fact that in modern laptops, optical drives are very rarely installed. If you have studied UEFI settings on your computer, it is also recommended to perform flash drives upgrade. With the advent of UEFI, all available loading flash drives will no longer be used in the usual way. For example, if you created a bootable USB media in the UnetBootin program, you will need to start a PC in CSM mode. The same applies to all old flash drives, since the developers of Linux Live distributions (for example, Gparted) only in the latest, most recent versions of their applications have begun to add a UEFI support and Secure Boot feature.
The simplest way in which the Secure Boot is turned off in UEFI, then using a free RUFUS program, a flash drive is compatible with the UEFI, after which the latest version of Gparted is copied.
Microsoft is outdated
With regard to boot USB media with the Windows operating system, there are several other rules. For compatibility with UEFI, they must be formatted in the FAT32 file system. Many users even for Windows 8 create boot drives on flash drives formatted using the Microsoft program that is part of the "seven". However, this default application formats the drive in the NTFS file system, as a result of which the system available on the media is subsequently impossible to install on a computer with UEFI. In order not to wait for the release of the updated program from Microsoft, you can create a bootable drive manually. To do this, first format the USB USB flash drive using a free utility. Then open the ISO image in Windows 8 and copy files to the media contained in it.
But to be compatible with the UEFI flash drive with a 64-bit Windows 7 loaded without any problems, you will need to copy the UEFI bootloader to the desired directory on the flash drive. To do this, using the free 7-zip archiver, find the ISO in the ISO image, which contains the installation files of Windows 7, in the SOURCES folder install.wim archive and open it. After that, from the 1 \\ Windows \\ Boot \\ EFI directory, copy the bootmgfw.efi file. Then save it on the flash drive in the EFI \\ BOOT directory and rename, assigning the name BootX64.efi. After that, the USB carrier can work in UEFI mode, and you can easily install Windows 7 from it.
Creating loading flash drives based on Live systems
For compatibility with UEFI, flash drives must be formatted in FAT32. For example, the UnetBootin (1) program creates bootable drives based on Linux Live distributions, formatting them in FAT. However, the RUFUS utility (2) offers a more correct option.
Flash drive to restore OS on PC with UEFI
Flash-based flash drives based on fresh Live systems, such as Gparted, are able to easily access PCs with UEFI, since the tools are built into them - for example, GPart (1) and TestDisk (2) - can work with GPT sections.
Formatting the boot flash drive with Windows
The 64-bit version of Windows 7 can be installed on a PC with UEFI. If you want to perform this operation from a USB drive, you must format it using the DiskPart Windows program in the FAT32 file system and make it bootable.
Removing a UEFI boot
A compatible UEFI flash drive with Windows 7 additionally needs a UEFI - bootmgfw.efi bootloader. It is necessary to manually copy it from the Install.wim archive on the USB flash drive using the 7-ZIP program or any other archiver.
A source
How to install Windows in Legacy or UEFI mode?
While the installation process itself, the prepared user does not cause special difficulties, the process of preparing the boot device and the selection of installation modes can cause questions. At least in terms of understanding the difference between the installation modes on various types of tables :. We open some of the process details to install Windows. The article will be divided by this principle:
If the theory does not interest you, go immediately to the installation.
The UEFI software is launched, which supports recognition of the list of "valid" boot volumes, which are known to some prospill users as EFI Service Partitions.
He does not care about the device, the UEFI is interested in the "special" sections with a working GPT table. GPT does not contain an initial bootloader (Boot Loader), as MBR does. All employed EFI drivers take all the work. And, if the section is found, the system immediately begins to download. If not, UEFI can switch to the Legacy method, in which the boot principle changes to you already familiar (see Installing Windows in UEFI mode). If LEGACY has nothing left, we are confronted with
Please Insert System Disk ...Now that Windows boot principles in both modes are considered running, go to direct comparison.
Performance
Legacy BIOS is controlled by an exceptionally constant ROM storage device (read only Memory), stitched into a CMOS chip and being an immutable part of a ligament. Add or change some components on your computer? In some cases, the computer will simply not start due to the incompatibility of the BIOS and the updated component. Thus, there is a need for flashing the CMOS chip (and not only after replacing such an important component as a processor, for example). This, however, already "language" problem of the Legacy option (see below). In addition, the difference between UEFI and LEGACE should be considered precisely in terms of the difference between the two types of tables: MBR and GPT.
The UEFI software partially solved this problem at the expense of the drivers, which are now responsible for the correctness of the OS launch instead of ROM. In addition, the drivers do not have the fact that "suffered" BIOS - a memory limit. This partly also solves much more expanded compatibility with the "iron" of the computer. But further - it is better: once it is drivers, it means they are written uniquely (namely "versatility" BIOS sometimes plays a bad joke with users). In the end, such drivers are easily recorded and installed from a regular disk / flash drive, as well as the usual drivers for other devices. What is the result? In the LEGACY mode, stitched in the BIOS software "taxis" by loading within the established (and maybe very, very long) norms. As a result, the system loading is as needed by BIOS. At UEFI, the boot process is more adapted to a specific assembly and system: CMOS listens to the features of the OS, the chances of loading the system and the stability in the work is much more.
Download speed
Despite the seeming difficulty in loading mode of drivers in UEFI compared to the strict BIOS program, loading from UEFI On modern processors, there is much faster. At the same time, on the chipsets of the old sample with smaller speed indicators and the cache volumes, the advantages of the UEFI would not be noticeable. But no one knows about this: I will remind you, the technology has been widely distributed with a dozen years ago, and on old support fees UEFI does not exist.
With Assumbler
Everything is more complicated here for the end user, but in the end again everything rests on the advantage UEFI. This item is absorbed in both of the previous ones. Written in C, EFI implies friendliness and adaptability not only for the author on the manufacturer of "iron". Not as an example of the smaller lines of the assembler code for Legacy.. Legacy.- Programs (i.e. inherited type software) has always been limited to the fact that the update of the program is impossible without updating the equipment.
What will be the set of installation files?
First, decide on the media from which you will install Windows. I will not decline in any side, all options have pluses and cons. I personally seemed for myself that:
- the optical disk in the drive - always reliably (if properly to store: do not leave in the sun, do not wash the solvent and do not scratch); However, drives are not always and everyone has
- flash drive compact and mobile; But the reliability of the carrier is questioned: a bit wrong "pulled" or inserted into the port - and before you file system Raw. With unreadable files that need to be restored too. But, given the publicly availableness and the increasing applicability of flash drives as universal devices, I will have it as a carrier.
I do not see this topic for more details, but therefore proceed to the installation.
And my motherboard supports UEFI?
The latest versions of motherboards are done (until 2012, UEFI did not exist). However, the wording "latest versions", you agree, vague. For sure you will tell you the BIOS / UEFI itself when you start the computer and pressing the key Delete. (or in the F-keys zone). However, you can learn about it directly from Windows installed on the disk. The best way to detect is to use a benchmark program (such as HWINFO of the relevant version of Windows) and check the support of UEFI in part Motherboard left:
uEFI support is
uEFI support no
And let him not confuse the presence of the folder EFI by the address:
C: \\ Windows \\ Boot
It has all the latest versions of Windows. So clarify the question immediately so that when trying to install Windows in UEFI mode you did not meet the discouraging (see paragraph with windows installation in UEFI mode):
Read more about how to identify Windows loading modes in articles:
Does the board support the UEFI mode?
How to install Windows in UEFI mode?
To install Windows by any of the specified modes at the time of this writing, even a child can, the process itself is simplified. We will need only:
- the image of the necessary version of Windows, downloaded according to the instructions of the article. I used it;
- flash drive more more (from 4 GB; I recommend OT. 8 GB)
- program Rufus..
Further. Before preparing to prepare the specified way, make sure that the Motherboard version generally supports UEFI mode. If everything is in order, and the selected version you are sure, continue. For further work, close the background programs and prepare a flash drive for making the installation files from the image. This can do the utility itself. Rufus.. So that…
- Run Rufus. And set the photo settings. Important points I wrapped in red:
- Agree with warnings and proceed, clicking on the button Start.
- We are waiting for the end of the Windows installation on the USB flash drive. The installation speed is determined by the computer capabilities and the USB type of the port and the parameters of the flash drive itself. After completion, you can test the performance or "hijling".
For the installation of Windows, you must either set either after switching on the computer / laptop "Catch" the menu of selecting the boot device ( Boot Pop Up Menu). The last on different motherboards appears in different ways:
- Phoenix BIOS - F5.
- AMI BIOS - F7.
- American Megatrends - F8.
Keys are also found Tab., less often - others in (each manufacturer can be their own, Lenovo, for example, F12.). Next, just follow the System Installation Manager Council. Who is lost, refer to the section.
Cons option
Even created by the wave, the carrier will probably stumble upon the frozen screen with the inscription
However, some of the manipulations in the BIOS will help to correct the situation with the installation of Windows with the USB flash drives created in UEFI mode. So, the ideal option would be the one that includes mutual support (UEFI and LEGACY):
How to install Windows in Legacy mode?
The conditions for creating a flash drive are the same as in the previous version. Only now the window Rufus. Before recording on a flash drive, in some settings it looks like this:
More detailed (although the process is simple) Description - in the content of the article. There, on example, a slightly obsolete version of the utility is placed on the shelves. The process of choosing the finished already flash drives when installing Windows on the computer is also similar to the same from the previous paragraph:
- selecting a flash drive as a boot device from BIOS or Boot Pop Up Menu
- selection / Creation / Disk Partitions
- installing the system and drivers to devices
In the BIOS and UEFI of modern motherboards and laptops, you can meet the setting with the name of USB Legacy, which is most often located in the "Advanced" sections of the firmware interface. Today we want to talk about why this setting exists and what she answers.
Almost all computers have many years have built-in ports for the USB bus, which is used to connect most peripheral devices. Most often are keyboards, mice and external drives - precisely for their correct operation in the BIOS and the option is intended.
The newest BIOS variants known as UEFI support the graphical interface to facilitate the firmware. The mouse is actively used in this interface, unlike purely keyboard control in the "ordinary" BIOS. The USB protocol has known restrictions on low-level access, so without activating the USB Legacy parameter, which are connected to this connector, will not work in the UEFI. The same applies to the USB keyboards.
This is a similar way with flash drives, however there is one important nuance. The boot drives with Windows 8 and the newer usually work and without switching on the Legacy mode, while the media with the Windows 7 recorded or some distributions on the Linux kernel may not be recognized. The fact is that to record "seven" (or older Microsoft systems) or Linux-based distributions uses a partition table that modern UEFI is not supported by "from the box", which is required to activate the USB Legacy parameter.
Enabling USB Legacy
Activate USB operation in the BIOS for outdated systems does not constitute problems, and then we describe the procedure for basic firmware options. It goes without saying that the first thing will be needed to enter the BIOS interface - this will require a computer restart and press a specific key during the machine loading process.
PHOENIX AWARD BIOS.
Ami Bios.
Note! Multiply exclusive modes: UEFI flash drives will not work with active Legacy!
Other BIOS options
In less common embodiments, firmware interfaces should be focused on the possible location of the described option - section "Advanced" or "USB Ports".
It should also be borne in mind that in some cases the support for USB Legacy in the BIOS of a desktop computer or a laptop may simply not be - usually like this can be found in some server solutions, OEM boards or vendor products of the second echelon.
Conclusion
We found out what the USB Legacy Support represents, identified the tasks of this option and considered methods for its inclusion in common variants of Bios or UEFI.
Computers develop more and more each day and it allows them to work even better and more reliable. Many already, probably heard of the BIOS, and if they already installed Linux, then, probably, you know what it is and has already had the experience of setting. You most likely noticed that BIOS is difficult to configure and use. This is a low-level software, and it remains unchanged for the last two decades. Because of this, now the BIOS technology can be considered obsolete and needed replacement.
The new system - UEFI over time, displaces the BIOS, but, like most of the new technologies, its implementation moves very slowly and for a long time. Users misses the importance of the low-level operating system, it is this deficiency that is trying to close the UEFI. In this article, we will look at what the UEFI differs from the BIOS, we will try to find out what is better than BIOS or UEFI, and also determine what is better to use.
BIOS is decrypted as Basic Input / Output System or in Russian - the basic input and output system. This is a low-level software that provides a layer between computer hardware and operating system.
BIOS starts as soon as you turn on the computer, checking and testing equipment, and then loading the operating system bootloader.
The BIOS fee is built into each motherboard and, except for the preparation of BIOS equipment, can be useful in a number of several cases. Since BIOS does not depend on the operating system, you can access its settings without an installed OS. In addition, you can configure various parameters of the equipment - the frequency of the processor and memory, the operating voltage, delay, and so on. This allows you to perform a fine configuration of the computer and get the maximum performance.
Generally speaking, it's all that the BIOS does, there is only a pseudographical interface, control using the keys and only equipment settings. The BIOS bootloader takes from the main boot record - the MBR, and the bootloader can only be one. Naturally, no speech about the choice of bootloader cannot be.
What is UEFI?
UEFI, or UNIFIED EXTENSIBLE FIRMWARE INTERFACE, is based on EFI - developing Intel, which is designed to replace the BIOS. EFI standard has been developed over the past few years and has already begun to gain great popularity, since manufacturers begin to use it on their devices instead of the outdated BIOS technology.
UEFI supports all functions that have been implemented in BIOS, as well as many new features, which makes it a better solution for use on modern computers.
Here, in addition to the initialization of equipment, reading the settings from non-volatile memory and start the bootloader, a large number of functions are supported. It can be said that this is a low-level operating system. This is the main difference between the BIOS from UEFI. Here supports equipment driver, and from here Support mouse and graphics card, there is also a full-fledged console with support for launching applications, networks and work with equipment. Up to the point that you can not only copy and move files in supported file systems, but also play discs or music if it is supported by EFI programs.
Despite the significant advantage compared to the BIOS, the UEFI has some limitations on 32 bit processors. 64 Bit processors fully support UEFI, but 32 bit do not support part of the functions and the operating system should emulate the BIOS environment for them to work normally.
Many devices now you can use two Legacy BIOS or UEFI modes. During this, many useful functions are lost. Manufacturers of processors and developers of operating systems work together to correct this problem and it turns out well.
Define a UEFI or BIOS is used on your computer. You can simply just look at the computer setup interface before downloading. I think you will understand everything here.
What technology is better?
The old BIOS technology was an industrial standard over the past twenty years and during this time he did not receive a lot of changes due to such restrictions as soon as one memory megabyte, 16-bit instructions and MBR disc markup tables, which supports hard drives maximum 2 TB And no more than four sections. Twenty years ago, this was quite enough, but with modern standards such restrictions are too tough.
In addition, UEFI flexibility is necessary for technology available now or those that will be available in the future. The BIOS restriction in one megabyte created a very large number of problems with equipment developers, but now there are enough space to download device drivers.
The UEFI has a modular structure and thanks to the GPT partition table can support 128 sections of up to 8 exam. It also provides closer integration with the operating system. A very important component of UEFI is an increase in security. This is an important difference between the BIOS from UEFI. Users can only install registered operating systems. Each operating system is issued a key embedded in its bootloader, and the UEFI system reads this key and compares it with its database. If this key is not in the database, the operating system will not be allowed to load. It could cause many problems with Linux distributions, but this problem was solved. In addition, users can add keys to the database themselves.
Due to the modular UEFI structure, new functions can be added later and thereby expand the existing system. This makes such a system more promising and easy to use.
Use new UEFI systems is much easier, they have a full-fledged graphical interface with a mouse pointer and an intuitive menu. You get the opportunity everything is very easy to configure. In addition, maternal manufacturers can develop various UEFI software modules that will allow you to easily test various equipment.
In general, if we compare UEFI and BIOS, then the first wins due to its modularity, extensibility, as well as independent drivers and ease of use. It will take some time until users choose BIOS or UEFI and a new technology will slowly replace the old. More and more manufacturers use UEFI on their boards and computers and 32-bit processors are all less often. But, as with all other achievements in the field of computer technology, it will take a long time to go to the UEFI. You now know what the UEFI differs from the BIOS and can make the right choice when buying a new device.
