entranceThe UEFI is better than BIOS. What is the difference between the UEFI BIOS from the traditional biosh? How to Disable Secure Boot and UEFI on Acer Aspire Laptop
UEFI BIOS - software solutionrepresenting an alternative bIOS systemsTo which most of the users of computers have been accustomed to. It is impossible to say that this is completely fresh development. Work on the creation of the interface between the OS and firmware responsible for the low-level functions of "iron" began in the second half of the 90s. Initially, this interface was called Intel Boot Initiative. A little later, the name was changed to EFI.
The first specification of this interface, issued by Intel in 2000, demonstrated it explicit advantages over classic BIOS. Therefore, its support is in most modern motherboards. Today we will talk about the features and benefits of UEFI. But for this you must first figure out what BIOS is.
What is the BIOS?
This software solution embedded in a chip on the motherboard. This firmware provides data exchange between computer components and operating system. That is, due to BIOS Windows has the ability to work with rAM, motherboard, processor, video card and other components.
BIOS is initialized much earlier windows downloads . The firmware is assigned a task to check all computer systems that we listed above. In addition, the BIOS sets them the desired functioning parameters.
In the event that during the POST procedure, a defective component of the computer is detected, the BIOS will transmit a code sequence through a small speaker sound signalson which the user can determine which item is faulty.
Why did the developers of software and iron decided to abandon the BIOS in favor of UEFI?
Agriculture there are several reasons:
For these reasons, leading brands provide support UEFI in modern motherboards.
The main advantages of UEFI
UEFI Unlike BIOS is not a firmware, a miniature operating systemBut at the same time she took a lot from his predecessor. UEFI tasks are exactly the same as BIOS - the relationship of the software and the "iron" of the computer. New interface Similarly, checks the equipment before starting windows bootloader.
To the main advantages of UEFI can be attributed:
The new interface supports the mouse control.
It is intuitive and supports many languages. Its setting does not cause any problems.
- UEFI Unlike BIOS works perfectly with hard drives having GPT.
- Bios UEFI provides the ability to work with hard disks with a volume of more than 2 TB.
- Hard drives with the GUID table work with the new LBA addressing.
- Windows in UEFI starts much faster.
- UEFI has its own bootloader, which allows you to use several operating systems on one computer without the use of special loaders.
- Bos UEFI is very easy and safely updated.
Concerning " Secure Boot "This procedure is still considered a dubious advantage. As mentioned above, if you do not disable it, then the installation of any operating systems, except Windows 8 and 10, will be impossible.
There is an opinion that Microsoft is actively promoting the procedure "Secure Boot" in order to combat competitorsbecause not only old operating rooms cannot be installed on new computers. windows systems , but also with third-party developers. Someone will say that it is enough to disable this procedure to solve the problem, but then the user will be deprived of all the advantages of working with hard drives having a GUID.
Microsoft accusations answers the same type - the protocol was designed for user security. And they have nothing to parry, because the "Secure Boot" really provides a high level of protection.
Today, the user can face from different versions UEFI . The fact is that manufacturers are engaged in the development of the interface personal computers. Therefore, UEFI OT different brands different in appearance and functionality. For example, during computer launch, the user may not see the menu to access the interface settings. As a rule, the user can later access them directly from Windows. At the same time, the user can correct the situation by selecting the "Parameters" tab Special options Downloads. " After rebooting, the menu will appear at the start available modes Downloads.
Alternative to access the UEFI settings - press the ESC key on the keyboard when starting the computer.
UEFI can work in two modes:
- Normal. Provides full access to interface options.
- Legacy. It is not recommended to install this compatibility mode with the BIOS in the event that the volume hard disk exceeds 2 TB. The operating system can stop loading. Moreover, if a disk is present in the system with a volume of more than 2 TB, then the UEFI automatically activates normal mode With his "Secure Boot". If at the same time there was a disk windows versionother than 8 and 10, then it will not start.
Exists third mode of operation UEFI - hybrid, but it is still implemented on a small number of computers models.
Another important feature of UEFI - it does not recognize the file nTFS system . That is, it is impossible to install an OS from flash drives formatted in NTFS. Some computer specialists consider it a disadvantage of a new interface.
What needs to be done to install Windows UEFI?
Installing Windows via UEFI is a bit more complicated than through BIOS. First, the user needs to create a loading flash drive.
If the user intends to install Windows 10, then you can use to create and set up a flash drive official utility From Microsoft Media Creation Tool. It is very simple to use it: you need to insert a flash drive connector of the computer to start the utility that will determine all removable media in the system and will offer you to select the desired option. Next, the user will need to hold a primitive setting: select the discharge of the operating system and language.
The loading flash drive can also be done using third-party utilities. It is extremely harder.
The next step is to configure the BIOS UEFI to the installation. To access the interface settings, click F 2 or DELETE when you start a computer. After starting the menu, you need to select the "Advanced" subsection. In the BOOT tab you need to select mode uSB support with complete initialization. On the "Secure Boot" tab, do not forget to select Mode " Windows UEFI Mode. " At the end of the setting, you need to set the priority of using boot devices. From the existing list, select a USB flash drive with the OS distribution.
After that you can install Windows.
If during installation of Windows 8 or 10 a message appears incorrect setting Secure Boot, then, most likely, the user forgot to include the "Secure Boot" procedure in the BIOS UEFI. To correct the error, it is enough to enable the secure download mode.
What to do installation of Windows 7 via UEFI BIOS?
For windows installation 7 via UEFI BIOS The user may encounter 2 problems:
After preliminary uEFI settings On and disconnect the required functions, you can start setting the OS from a flash drive, CD or DVD.
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. it software Low level, and it remains unchanged over the past 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 executing thin setting Computer and get maximum performance.
Generally speaking, it's all that BIOS does, there is only pseudo graphic interfaceManage with keys and hardware settings. BIOS bootloader takes from the main boot record - MBR, and the bootloader can only be one. Naturally, no speech about the choice of bootloader cannot be.
What is UEFI?
UEFI, or UNIFIED EXTENSILE FIRMWARE INTERFACE, based on EFI - development intel companieswhich 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 is the support of equipment drivers, and hence the support of the mouse and graphic cardAlso there is a full-fledged console with support for the launch of applications, networks and work with equipment. Up to the point that you can not only copy and move files in supported file systemsBut 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 Lose. 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 only one memory megabytes, 16-bit instructions and MBR disk markup tables that 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 oS. 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.
Thanks modular structure UEFI, new features can be added later and thereby expand 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. Will pass for a while, while users can choose Bios or UEFI and new technology Slowly replaced the old one. 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 computer equipmentYou will need a lot of time to go to UEFI. You now know what the UEFI differs from the BIOS and can make right choice When buying a new device.
Summary
Tip:After the function safe download Secure Boot will be disabled, and the Legacy Mode compatibility mode is activated on a hard disk of less than 2 terrabyate computers, the UEFI section can be completely deleted as desired (for example, if there is no more need to use Windows 8). This can be done using the type application Gparted.).
Compatibility Mode Legacy Mode. - This is an option that usually makes it possible to install and run operational systems that do not support UEFI. This refers to Windows 7 or more early versions, as well as a set of small linux distributions. Due to shutdown UEFI computer will be run directly from the BIOS.
Although Manjaro supports work with UEFI from the box, if the compatibility mode was not enabled, the load-friendly download screen presented in the installation instructions will not appear. Instead, the root menu will appear. This is a menu for UEFI.
Step 1: Access BIOS Settings
Tip:No need to follow the complex and confusing instruction developed by Windows 8. For access to your BIOS or UEFI. You can also click on the images placed below to increase them..
UEFI is an add-on BIOS system of your computer. Thus, you need to go to bIOS settings In order to disable the secure download option in UEFI. To do this, click one of function keys (F) - usually
As soon as you get in the UEFI menuThe image will appear on the screen similar to this.
However, as shown, it still has the opportunity to access the BIOS, in this case by pressing the key
When switching to the BIOS settingsA window will open like this.
Step 2: Access to Download Settings
Once in the BIOS settingsYou will have the ability to use the arrow keys<влево> and<вправо> Go on tabs (usually Main, Security, System Configuration and EXIT.). You can use arrow keys<вверх> Or.<вниз>To highlight and select the settings placed under each tab.
1. Go using the arrows<влево> / <вправо> in the tab SYSTEM CONFIGURATION..
2. String will open Boot Options.. Highlight it arrows<вверх> / <вниз>.
3. Highlight, click<ввод>To get to its settings.
Step 3: LEGACY MODE Activation
Attention:Repeat if your hard disk is more than 2 TB / 2000 GB, you should not activate the compatibility mode. If the compatibility mode is already turned off, in this case your BIOS can try to automatically enable it, simultaneously turn on the secure boot secure load mode.
Being Boot Optionsyou will see the settings Legacy Support / Mode.
1. Highlight the option Legacy Support / Mode Using arrows<вверх> / <вниз> on keyboard.
2. Highlight, click<ввод> To enter the menu.
3. As can be seen in the photo, a new menu will appear in which you can select "disabled" or "enabled". Highlight Enabled. Pressing on arrows<вверх> / <вниз>, then click<ввод>.
SECURITY mode in UEFI, or Security Boot, provides on a laptop, stationary computer Startup protection: Blocks access to setting up the priority of boot priority from a CD / DVD, a USB drive (including does not allow to use the OS with boot flash drive), prevents attempts to install an unlicensed, unauthorized OS, unauthorized intervention in the loading shell. In such situations, when loading, "Secure Boot Violation" appears on the display, which signals the impossibility of modifying the download in the BIOS (in BIOS), UEFI.
To remove this blocking, you must disable the corresponding options in UEFI. After turning off the security, you can change the priority of booting from disks and USB flash drives, as well as install any OS distributions.
This article will tell you how to disable Secure Boot in the options of the boot shell. It tells in detail how to turn off the protection mode on the devices of popular brands, how to find out using the system settings, whether Secure Boot is enabled.
Checking function activity
Load protection activation status can be found in two ways:
Method number 1: in options
1. Press together on the keyboard the "WIN" + "R" key.
2. In the "Run" panel, enter MSINFO32, press "ENTER".
3. Find the "Status ... download" parameter. View its value: "Off" - protection mode is turned off, "On" - switched on.
Method number 2: In the PowerShell console
1. Run the utility:
- open the Start menu;
- in local line Set the name of the utility - PowerShell;
2. Click on the "Start" panel list that appears with the utility string.
3. Set the command to the Confirm-SecureBootuefi command.
4. Press "ENTER".
5. The system immediately after entering the command will display the protection status: True - enabled, FALSE is disabled.
How to open UEFI / BIOS settings
To deactivate the Security Boot, you initially need to open the UEFI or BIOS bootable shell. You can also perform this procedure:
Method number 1: With the help of "hot keys"
Restart OS. Press "Del". If the entrance to the shell failed, it means that another " hot key»To log in to boot settings. This may be - "F2" or a combination "Fn + F2" (on a laptop).
Note. The transition button to the BIOS may be indicated on the monitor during the system startup.
Method number 2: Full Option Option
(option for 8 / 8.1)
1. Activate the retractable panel (on the right side of the screen).
2. Go: Parameters → Change parameters ... → Update and ... → Restore.
3. In additional superstructures, set the "UEFI settings" restart mode.
4. Activate the Restart command.
Turning Office
Motherboard ASUS (PC)
1. Restart the PC. Press the "DEL" or "F2" key (depends on specific model ASUS). When the shell appears on the display, press "F7", "Advanced Mode" will appear.
2. In "BOOT" click on the "Secure Boot" line.
3. Set "Other OS" in the Settings panel.
4. Return to "Boot", Compatibility Support Module (CSM).
5. Turn on the Launch CSM option: Install Enabled at its row.
6. In " Boot Device. Control »Set the value" UEFI and LEGACY ... "or" Legacy Oprom ... ".
7. Below on the list, in "Boot ... Devices", select "Both, Legacy ... First" or "Legacy Oprom ...".
Everything. Setup completed. Protection is deactivated. Press "F10", confirm the settings modification. Restart OS.
Laptop asus
1. In the boot shell, in Security - Secure Boot, set out "Disabled".
2. In "Boot" - Fast Boot Change the parameter to "disabled".
3. Save the options configuration (F10), restart. Open the BIOS.
4. Boot - "Launch ..." change the value to "Enabled".
5. Save the changes and restart the OS.
ASRock
1. In UEFI, open the "Security" ("Shield" icon in the top menu).
2. In "Secure Boot" Turn the switch to "Disabled".
3. Press "F10" to save the settings. Perform a PC reboot.
Gigabyte.
1. In the UEFI, open the menu "... Features".
2. Set the options:
- Windows 8 Features - Other OS;
- BOOT MODE SELECTION "-" LEGACY ONLY "/" UEFI AND LEGACY "( possible options);
- Other PCI Device Rom Priority - Legacy Oprom.
3. Save the modifications performed using the "F10" key.
MSI
1. On the shell menu, go: Settings → Boot.
2. Boot Mode Select change the parameter to "Legacy + UEFI".
3. Press F10 to save changes in the options.
Toshiba.
1. In the Security- "Secure Boot", set the "disabled" position.
2. Go to the shell: Advanced → System Configuration.
3. Find "Boot Mode" (also it can be called OS MODE SELECTION) and set its switch to the "CSM BOOT" position (alternative parameter names - CMS OS, UEFI and Legacy OS).
4. Activate the Save Settings command with the "F10" key. Restart the system. Now you can use boot discs and flash drives, as well as install any OS.
HP.
In the HP Pavillion laptops for deactivation, you need to perform a few more additional settings:
1. To enter the UEFI-BIOS in the reboot process, press the "F10" key (in separate models: ESC → F10).
2. In the shell, go: System Configuration → Boot Options.
3. Change the position of the following options:
- Secure Boot - Disabled (Disable Protective Mode);
- Legacy Support - Enabled (Enabling compatibility with other OS).
5. In order for the new settings to take effect, activate the save parameters with the F10 key.
6. Restart OS. Upon completion of the restart of the system, a warning will appear and input to enter the specified code (displayed in the line ... to Complete The Change). Dial it and click "ENTER". The laptop will automatically reboot.
To change the priority of the download in order to use the installation USB flash drive during the switch on the laptop, go to the starting menu (ESC key) and perform necessary settings In the "Boot Device Options" section (F9 key).
Samsung
1. To switch to the UEFI-BIOS shell, press the "F2" key during laptop.
2. Go to the "BOOT" panel, set the cursor in the "Secure Boot" string.
3. In the submenu, change its parameter to the "disabled" value.
4. In a warning message, select "OK" (confirm the change).
5. After disabling the protection in the same list, the OS MODE SELECTION item will appear. Specify the CMS OS parameter (or UEFI and Legacy OS).
6. Save the settings (F10) changes.
7. Restart the laptop and go to the UEFI-BIOS again.
8. Go: Security → Set Supervisor Password. Click "Enter", enter early set password. In the following fields, click "Enter" without data entry.
In the message "Changes ... Saved" again, use the Enter key again. Now the password is reset and access to the activation / deactivation of Secure Boot protection has appeared.
Lenovo.
- Go to the UEFI console using the F2 key or the Fn + F2 combination (depending on the model).
- Open: Section Section → SECURE BOOT option. In its column, set the "disabled" value.
- Save the option value (press F10).
Dell.
In Dell laptops, equipped with an insydeh2o shell, protection deactivation is done like this:
- The menu opens: Boot tab → UEFI BOOT subsection.
- The "Secure Boot" row is set to "Enabled".
- Settings are saved, restarting the laptop.
Outcome
As you can see, the principle of disabling the Secure Boot protection on different models Almost the same with the exception of only some nuances associated with the location of the menu and additional superstructures. If even in this review there is no model of your PC, a laptop, use the basic algorithm to deactivate the protective boot option. Namely: the entrance to the UEFI shell → Switching off the Secure Boot (+ in some computers Enabling compatibility with other OS) → Saving the created shell configuration → Restart system.
Successful and fast to you configure a computer! Be extremely attentive, changing the value of options in the UEFI console.