Boot from the boot disk. Features of changing priority in BIOS
For many situations associated with the use of modern computers, intervention is required, so to speak. basic settings computer hardware. Therefore, it is advisable to know how to do it correctly.
Probably, in the recent past, each user had to spend a certain amount Money, in order to reinstall the operating system and necessary software applications. Waiting for a specialist and some inconveniences associated with the call still force a person to draw the proper conclusions and decide on an extremely expedient step - to carry out the process of reinstalling the inoperative OS with his own hands. As a result of this, the first completely logical question: "How can I set the BIOS to boot from disk?" It turns out it's not that difficult.
So, what is BIOS anyway?
The fact is that any computer is initially equipped with an independent electronic chip, the essence of which is to control the hardware computer. That is, a person using functionality BIOS, can in practice make changes to it software settings, which critically affects the OS boot parameters. Activation or disabling of some hardware components is also done in the environment of the basic input/output system. At its core, the question of how to enable booting from disk in the BIOS implies changing the priority of one of the boot devices.
Today, 3 types of BIOS are widely used:
- American Megatrends (AMI).
- Award Software (Phoenix Technologies).
- (UEFI).
The last item from the presented list is a new brainchild Intel. Practical, multi-level and with an intelligently understandable interface, the revolutionary BIOS has surpassed its predecessors in the perfection of technological solutions.
The question of how to set boot from disk in the BIOS is solved in different ways.
In order to enter the basic computer system, first of all you need to know its “pedigree”, that is, what type your BSVV belongs to. The moment you turn on your desktop or laptop, the information displayed in the upper left corner of your monitor will give you an idea of what you'll be dealing with. Well, what to do next, you will learn from what you read below.
Award Software and Phoenix Technologies
The same “delete” key and “Morse-like” pressing will allow you to enter the holy of holies of your electronic machine.
- Use the up/down arrows to go to " Advanced BIOS Features".
- In the first item (usually Floppy is there by default), use the “enter” button to call up the drop-down submenu and select “CD-ROM”, this is your drive, which has become the priority bootloader.
- Return to the main menu by pressing “esc”.
- Save & Exit Setup is the next step, the final one, so to speak. Agree to the question about saving by selecting the letter “Y”.
Attention! Booting a laptop from a disk differs from the stationary version only in some differences in the buttons used to enter the basic system of the laptop. The most likely keys to use are "delete" and "F2". Again, you will not have any problems with the button being correctly activated if you press “Pause” during the computer boot process. At the bottom of the display there is a service line with detailed information about which key is responsible for directly entering BIOS settings.
- To change the sequence of devices that are started at the time of reboot, press “F10”. In some models it is necessary to use the “F2” or “F6” button.
- Select the “Advanced” tab, the left/right navigation arrows will help you with this.
- Then in “Boot order” you set the boot priority to DVD drive.
- Finally, press “F10” and confirm your consent to the changes.
It is worth noting that the “F9” key allows you to return the default values. Now for you, the question of how to boot from disk on an HP laptop is also resolved and understandable.
American Megatrends (AMI)
- When you start the computer, briefly press the “delete” key. In the BIOS interface that appears, select the “Boot” menu.
- Then - " Boot Device Priority".
- In we mark the priority of loading from CD-DVD drive, and HDD should be (visually) lower.
- Next step: press the “esc” key.
- Go to the “Exit” menu and use the up/down arrows to activate “Exit & Save Changes”.
- In the drop-down window, agree by clicking “ok”.
Congratulations! The question of how to enable booting from disk in the BIOS has been resolved for AMI BIOS.
Extensible Firmware Interface (UEFI)
This basic system is much clearer and more comfortable to use. Firstly, the Russian language is provided in the interface design. Secondly, everything is extremely thought out. An important convenience can be considered the implemented ability to control using the mouse. So, let's configure the required boot parameters:
- And again the indispensable “delete” key. A few clicks will help us enter the main BIOS (UEFI) window.
- In the lower left corner of the screen, select the illuminated interactive button “Advanced (F7)”. Click it with the right mouse button.
- A drop-down window will ask you to confirm your actions: “Enter advanced mode?” Do you agree - “ok”.
- Next, you need to activate the “Download” tab.
- Scroll the proposed list with your mouse to the last item “Download Changes”.
- Next step: right click mouse and select your drive from the first drop-down list provided. After this, the base system will automatically restart the computer with the changed parameters.
Agree, everything is elementary simple. After you have changed the priority of devices in the BIOS program, booting from hard drive will only happen if there is no installation disc in the drive. However, after all necessary actions It is recommended to return the boot priority to the default values.
Finally
Before your theory turns into logical practice, it is worth remembering one thing Golden Rule: not sure of the correctness of your actions - you should not change the settings in the basic BIOS system. The consequences can be disastrous. Remember: by making adjustments to the computer hardware management program, you can completely “kill” the machine. Therefore, be careful what you do.
Particular care must be taken when changing settings that affect the voltage supply to devices. Also not recommended for users who have basic concepts about the operation of the computer, independently carry out actions that help overclock the processor, or reflash software part BIOS, otherwise you won't have any problems.
Like
Like
Tweet
Let's say you have a boot disk with Windows in your hands. Or the Dr.Web LiveCD anti-virus disk. Or maybe you want to install Linux. You insert the disk into the computer, but suddenly the question arises: “What to do next?” If you are an inexperienced (yet) computer user, this question will be one of the first to arise. For experienced users also sometimes you need to know the boot order in different versions BIOS. So my instructions are suitable for everyone.
So, we are faced with a task: we need to tell the computer which disk it should boot from first. To do this you need to go into the BIOS settings. How to do this - read on.
Which button should I press?
The very first question that arises for an unprepared user. How to boot from boot disk or flash drives?
Two solutions:
- Open the boot menu with a list of connected boot devices and select the one you need from the list.
- Set up BIOS motherboard so that loading operating system came first with desired device, and not from the hard drive.
Option 1 simple, but not all BIOS support such a menu. In any case, it's worth a try. Typically, the boot menu appears when you press F11 or F12 immediately after turning on the computer. Less often - Esc, F8 or other buttons. Sometimes it is supported but disabled. In this case, read the instructions for your computer's motherboard.
Option 2 It always works - there are boot settings in almost every BIOS. I will tell you about the setup.
We need to get into the BIOS settings. BIOS (or its improved analogue UEFI) is a special system that boots immediately after turning on the computer. The BIOS does not depend on Windows or anything else because it is located on a memory chip soldered into the motherboard. You can read more about terminology.
Typically, to enter the BIOS settings, you need to press the Delete, F2 or Esc button 1-3 seconds after turning on the computer. How to find out which button to press: after turning on the PC, look for the line Press Del to enter Setup on the screen (where instead of Del there may be F2 or another key). This will be the inscription about which button to press. Example:
Another example:
Instead of a black screen with diagnostic text, the logo of the laptop or motherboard manufacturer may be displayed, then the prompt will look like this:
By the way, in the last two screenshots there are hints for the button boot menu(which cause easier) - on the first it is Esc, on the second F12. Let me remind you that this option is preferable, but is not always available.
On loading screens some laptops do not have an inscription, then look at the key table
Press the desired button and get into the BIOS. If you press the wrong button, nothing bad will happen, because... the computer will simply ignore your actions or show some other BIOS add-on that will not contain what you need. Then you need to press Reset (reboot button on system unit) or Ctrl Alt Del to restart your computer.
After clicking the desired button and the appearance of the BIOS screen, an ambush awaits us - there are many versions of BIOS, their settings look different. There is good news - they all most often have the same points, so you can figure out what's what. There are two BIOS versions that are very different from each other, we will look at them below.
Please note that similar tips can be found in the instructions for your laptop or motherboard. desktop computer. If you do not have instructions in paper form, you can always download it from the model page on the manufacturer’s official website.
After reading this article and looking at the explanatory illustrations, you will be able to configure booting from the Windows installation disk on any computer.
Popular BIOS version. It is, in particular, on many Acer laptops:
We need to get to the Boot section. Press the right arrow three times:
Here is a list of devices from which you can boot. The line names are different on each computer, but the first two words always tell you what kind of device it is:
- IDE CD – CD/DVD drive
- IDE HDD - hard drive
- USB HDD portable hard disk
- USB KEY – flash drive.
To set the disk drive first (line starting with IDE CD), i.e. change the boot priority, use the up/down arrows to highlight this item, then press F5/F6(on some versions of this BIOS you need to press – or), put it first in the list. It will be something like this:
To save settings made, click right arrow to get to the menu Exit(Exit), select menu item Exit Saving Changes(Exit and save changes) and press Enter twice in a row.
Note: The Exit Discarding Changes menu option allows you to exit the BIOS without saving the settings you have made.
The computer will restart and instead of loading Windows, it should start booting from the selected drive. That is, for example, the installation of Windows will begin. Mission Complete!
The main menu of this BIOS looks like this:
To change the boot order on AWARD BIOS, go to the menu Advanced BIOS Features:
Select a menu item First Boot Device(First boot device), click Enter and put a dot opposite CDROM (Removable, if you need to boot from a flash drive or portable hard disk):
Press Enter and return to previous page settings, go to Second Boot Device(Second boot device) and set it there Hard Disk – this will allow your computer to boot normally when removed DVD disc or flash drive.
Press Y on the keyboard, then Enter - the settings will be saved and the computer will restart.
Ready! Now, when a boot disk is inserted, the computer will boot from it first, and not from the hard drive. If the disk is not inserted, it will boot from the next device in the list.
Old version of AWARD BIOS
I've only seen this on old computers before 2003. The main menu looks like this:
To configure the boot order, you need to go to BIOS menu FEATURES SETUP: 
Paragraph Boot Sequence is responsible for the loading order. Buttons PageUp And PageDown(or Enter and arrows - unfortunately, I have no way to check) you need to set CDROM first, C second (this is the hard drive), third is not important - set any.
Similar to the aforementioned AWARD BIOS. Most often it contains the inscription BIOS Setup Utility without any explanatory names.
Use the “right arrow” button on the keyboard to move to the tab Boot:
On the Boot page you need to go to Boot Device Priority:
There are points here 1st Drive, 2nd Drive– “First boot device”, “Second boot device”. You need to open 1st Drive and specify CDROM (for a disk drive) or USB (for booting from a flash drive) there; in 2nd Drive specify SATA or IDE, depending on what kind of hard drive you have and which item will be available in the menu.
Another AMI BIOS
Everything is clear here, look at the picture:
Buttons and – You can cycle through menu items by pressing a button F10 will call up the option to save settings.
Questions and answers
IN: I can't get into the BIOS settings. What to do?
ABOUT: Make sure you're doing everything right. 99% of problems are due to inattentive reading of the instructions. Everything can be solved if you ask the almighty Google the right question: “motherboard/laptop model, boot settings.”
IN: I configured it as it should, but the error “NTLDR is missing” appears or the cursor blinks at the top left of the screen.
ABOUT: You wrote the boot disk or flash drive incorrectly.
IN: How to boot from a flash drive (or portable hard drive) rather than from a DVD?
O1: You must specify USB-HDD, USB-ZIP or Removable in the boot settings. The item name may vary. In case of problems, read the instructions for the motherboard.
O2: If the BIOS does not support booting from USB devices, you can do bootable DVD with Plop Boot Manager and when booting from it, select the “USB” item in the menu that appears. The advantage of this method is that even on old computers where USB works in slow mode USB 1.1, the speed will be fast - it will turn on USB mode 2.0. Minus - again, it is not always supported by some motherboards. Read more about Plop
IN:How to do bootable USB flash drive?
ABOUT: If you need a flash drive with installation of Windows 7 or 8, then go to the section
IN:The article does not contain instructions for setting up my BIOS. Please write!!111
ABOUT: With the advent of motherboards that use UEFI instead of BIOS, arose a large number of different in appearance, but essentially identical screens with settings. Since the settings need to be the same everywhere, either read the article above carefully and find similar items in your BIOS, or read the instructions for your motherboard/laptop.
IN: I configured the BIOS, now nothing loads at all. Help!
ABOUT: In 10 cases out of 10, the problem is inattention or an incorrectly made bootable flash drive/disk. Reset the BIOS settings either by removing the battery for half an hour from turned off computer, or the Load Default Settings menu item. Then do everything again, carefully reading all instructions.
IN: When booting from a flash drive, a blue screen appears.
ABOUT: You made a mistake somewhere when creating a bootable USB flash drive. Read the instructions more carefully or look for another one - there are many ways to create bootable flash drives.
IN: I made a boot disk/flash drive, configured the BIOS, but it still boots from the hard drive.
ABOUT: Either you prepared the boot disk/flash drive incorrectly, or you configured the boot incorrectly. If you are unable to read the instructions carefully, consider whether you will do everything else correctly? Maybe it’s better to contact experienced people (service center)?
Conclusion
Using the information from this article, you can launch bootable disks on any computer or laptop - any LiveCD, installation disk with Windows or Linux, any bootable USB flash drive (if the BIOS supports booting from USB devices).
On modern computers there are BIOS (or UEFI) versions with mouse support, beautiful menu and other, other things. Despite the different appearance, everything is configured according to the same principle as I gave above.
Don't forget after installation (or why else are you setting up the BIOS) to return the boot settings back so that the computer boots normally from the hard drive!
Most often we think about BIOS ( Basic System Input/Output) only when we need to reinstall the operating system and need to somehow set it to boot from a disk or flash drive. I often wrote about this in articles such as:, and others. Now I want to put it together and refer only to this article when necessary. This article will be useful for all BIOS versions and for different companies. A kind of single reference book
The first thing you need to know is that BIOS is divided by manufacturer and version.
To change boot method in BIOS- You must first enter it.
You can, of course, find out what version and manufacturer of your BIOS is from the manual that came with your computer.
You can also find out by looking at the line at the top of the black screen when loading (the manufacturer will be indicated there).
Well, then enter the BIOS, knowing what it is for you.
Some BIOS versions do not have such a screen showing lines. There’s just a logo there and at the bottom it says something like “Press F2 to enter SETUP,” which means press F2. If there is just a logo and there are no inscriptions, press ESC, and then del or f2
Here is a small list of manufacturers and keyboard shortcuts for entering BIOS:
Also at the bottom of the black screen there are keys for entering the BIOS and for displaying a list containing available devices to download and so that you can boot from it. But more about him at the end of the article.
As you can see, most often you need to press the key F2 or Del.
Now you need to load a flash drive or disk.
Let's look at a few examples that differ from the BIOS manufacturer.
Setting up Award Bios to boot from a flash drive or disk:
The main window looks like this, in which we need the second item:
Further depends on the firmware version. In one case, you will need to go to an item similar to “Boot Seq & Floppy Setup”
in another case, you don’t need to go anywhere - everything will be right before your eyes
Clicks on First Boot Device(First boot device), click Enter and a window like this will appear
in which you need to select the disk or flash drive that will launch first. You can specify a Second boot device, for example, but usually the BIOS itself fills in this data.
On a note:
If you choose a flash drive, then, among other things, you also need to go to the “Hard Disk Boot Priority" and move our flash drive to the very top using the "+" and "-" or "PageUp" and "PageDown" buttons:
It is also worth remembering that In order for the BIOS to see the flash drive, it must be connected before turning it on or before rebooting
Then press “F10” (see the exact key in the hint at the bottom of the screen called “Save”, “Exit”) or go to the main BIOS menu and select “Save and Exit Setup”. In the red window, select “Yes” using the “Y” button on the keyboard and press “Enter”
The computer will reboot and when booting from the Windows installation disk, the following request may appear for a few seconds " Press any key to boot from CD or DVD..."
Which translates to “Press any button to boot from a CD or DVD.”
This means that if you do not press any button on the keyboard at this moment, the computer will continue to boot from the next device on the list.
Another version of this BIOS:
I've only seen this on old computers from ten years ago, before 2003. The main menu looks like this:
To configure the boot order, you need to go to the menu BIOS FEATURES SETUP:
At this point, use the PageUp and PageDown buttons (or Enter and arrows) to select what to put first - CDROM or flash drive. DO NOT forget about the second and third device
And further:
How to choose what to boot from in AMI BIOS
If, after entering the Bios, you see such a screen, it means you have AMI BIOS:
Use the right arrow button on the keyboard to move to the Boot tab:
Go to "Hard Disk Drives" and in the line "1st Drive" (may be called "First Drive") select a disk or flash drive:
Next, go to "Boot Device Priority", go to "1st Boot Device" and select from the list what you selected in the previous tab (i.e. if you selected a flash drive in Hard Disk Drives, then you need to specify it here too. This is important! )
To boot from a CD/DVD disk, you need to select “ATAPI CD-ROM” (or simply “CDROM”) in this menu; there is no need to go to the previous “Hard Disk Drives” menu.
Now we save the results with the “F10” button or go to the BIOS “Exit” section and select “Exit Saving Changes”.
Another AMI BIOS, but everything is clear here:
Settings Phoenix-Award Bios to boot from a flash drive
If, after entering the Bios, you see a screen like this, then you have a Phoenix-Award BIOS:
Go to the “Advanced” tab and opposite “First Boot Device” set what you need (flash drive or disk):
Save with F10 key
Setting up EFI (UEFI) Bios with a graphical interface for booting from a flash drive
Now this won’t surprise anyone. Almost all new computers are equipped with a similar shell. You can read more about it in the article.
When loading, at the bottom of the screen there is a “Boot Priority” section, where you can use the mouse (by dragging) to set the images desired order downloads.
You can also click on the right top corner button “Exit/Advanced mode” and select Advanced mode in the window that appears.
Next, go to the “Boot” tab and in the section Boot Option Priorities in the “Boot Option #1” field set boot device by default a flash drive, DVD-ROM, hard drive or other available device.
How to boot from a flash drive or disk without entering BIOS
This is what I wrote about almost at the very beginning of the article.
This is when you need to press a key once and a window will appear with a boot selection. This method does not change the BIOS settings.
Usually Award BIOS prompts you to press "F9" to bring up the boot menu, and AMI asks you to press "F8". On laptops this may be the “F12” key.
In general, look at the bottom line and look for items like “Press F8 for BBS POPUP” or “Press F9 to Select Booting Device after POST”.
Why can't I boot from a flash drive into BIOS?
Possible reasons: 
On older computers there is no way to boot from USB flash drives at all. If a newer BIOS does not exist, then the project may help.
1) Download the latest version of "Plop Boot Manager" from the link above and unpack it.
2) The archive contains the following files: plpbt.img – an image for a floppy disk, and plpbt.iso – an image for a CD.
3) Write the image to disk and boot from it (or from a floppy disk).
4) A menu will appear in which we select our flash drive and boot from it.
A small explanation of disk designations when selecting:
Do not forget, after you have done what you wanted (namely, why you changed the boot in the BIOS) - return the boot settings back so that the computer boots from the hard drive.
Instructions
Turn on your computer. Insert the operating system boot disk into optical drive computer. After rebooting the PC, continuously press the F5 key (depending on the motherboard model, alternative keys may be F8 or F12).
A menu for selecting a computer startup option will appear. Select your optical drive (CD/DVD) as the startup source and press Enter. Wait a few seconds until the disk in the drive spins up. Then the screen will display the message “Press any key to start the disk” (press ani key boot from cd). Accordingly, press any key on the keyboard.
After this, the disk will start and the process of downloading files to RAM computer. Wait for the first dialog box, in which select “System Restore”. Windows will be scanned for errors, missing files will be restored. After this, the computer will reboot and start in normal mode.
If after you selected your drive as the system boot source, nothing happened, you need to select the computer boot device. To do this, turn on the PC, and immediately after turning on, press the DEL key. After this you will be taken to the BIOS menu. In it, select First primary device. At this point you can enter the startup order of computer devices. Select your optical drive as the first boot source for your PC. To do this, simply press Enter next to the number “1”, after which a list of devices will appear. From this list, select your optical drive (CD/DVD) and press Enter.
Then exit the BIOS menu. To do this, press the Enter key on the Exit line. A window will appear asking you to save the settings. In this window, select Save And Exit. The computer will reboot and the system will start from the boot disk. The further procedure is the same as in the previous paragraph.
Sources:
- how to start windows disk
Before installing the operating system, you must change the startup options computer. The problem is that initially the boot occurs from the hard drive. disk. It does impossible to start installer Windows systems.
You will need
- - Access to the BIOS menu.
Instructions
When working with desktop computer You can quickly change the boot settings of this device. Turn on your PC and hold Delete key. In some modern models motherboards another button must be pressed. Wait a while for the BIOS menu to load.
Find the menu responsible for device boot options. Usually it is called Boot Options or Boot Device. Sometimes this menu may be located in the Advanced Setup tab. Go to First Boot Device, highlight the Internal DVD-Rom device and press Enter.
Press the Escape key several times to return to the main BIOS menu window. Highlight Save and press Enter. Open the drive tray. Insert the operating system installation disk into it. Close the BIOS menu or simply restart your computer by pressing the Reset button.
Booting from disk in BIOS is required by various reasons. Most often this is needed for Windows installations. But sometimes you need to boot from disk to restore the operating system. You may have caught a virus. Or the computer stopped turning on. In such cases, you can configure booting from disk and try to restore the PC.
This is not difficult to do. Moreover, it is much simpler than. Indeed, in the latter case, you need to additionally check whether USB devices are turned on.
I would like to note right away that the OS version does not play a role here. You may have Windows 10, 8, 7 or XP - it doesn’t matter. The brand of the laptop doesn't really matter either. The only thing that matters is the BIOS version. There are 4 of them: Award, AMI, Phoenix and new BIOS UEFI. Each version is different appearance, and some items are called differently. Although the procedure is the same everywhere.
To enter the BIOS, you need to click one button when turning on your computer or laptop. Most often this is Delete or F2. Sometimes - F1 or Esc.
Let's start with desktop PCs. Older computers most often have Award BIOS installed. It looks like this:
To enable boot from disk in BIOS, do the following:
Ready. This is how you install boot from disk in Award BIOS.
By the way, if you accidentally changed unfamiliar settings, then when exiting the BIOS, when you are asked whether to save the changes, write N (i.e. No - “No”). Then you can enter it again.
If you did everything correctly, the computer will boot from the disk. As a result, you will see a black screen with one single line.
Press any button and it starts Windows boot from disk (if you recorded the OS). We've sorted out the Award - let's move on.
The AMI BIOS version is usually found on laptops. It looks like this:
How to boot from disk in a laptop? To do this, do the following:
The laptop will reboot and you will see the same black screen with one line. To start booting the laptop from the disk, press any button.
These instructions are suitable for laptops of any brand - Lenovo, Asus, Acer, HP Pavilion, MSI, Samsung, etc. If you have a different BIOS version, then 2 more options are discussed below. Perhaps one of them is your case.
How to set boot from disk?
The third BIOS version is Phoenix. It is less common compared to other options (mainly on old laptops). Looks like that:
How to set boot from disk to in this case? To do this, do the following:
The laptop or computer will automatically reboot. To start loading the installation disc (or recovery disc), click any button.
AND latest version– new BIOS UEFI. It looks different depending on the manufacturer of the motherboard installed on the PC or the brand of the laptop.
It has a stylish GUI, so it is not difficult to determine.
How to enable boot from disk in UEFI? This is even easier to do than in the previous 3 options. True, setting up booting from disk can be done a little differently - depending on the specific brand of laptop or PC.
For example, at ASUS section Boot Priority is at the bottom. And here all connected devices are displayed - hard drive, CR-ROM, flash drive. You just need to drag the drive icon to the first position with the mouse, as shown in the screenshot.
Then click "Exit" (top right corner) and save your settings.
The PC or laptop will reboot into automatic mode, and you will see a black screen. To start loading the operating system from the disk, click any button.
When you do what you wanted (install Windows or restore your PC), do not forget to switch the device boot back. That is, change the settings in the BIOS: put the hard drive first and the disk drive second. Otherwise, when you turn on the PC, the system will always boot from the DVD first, and if there is none, then from the hard drive. This applies not only to BIOS UEFI, but also to other versions.
How to install disk boot in UEFI from other manufacturers - MSI or Gigabyte? All you need is to find the “Boot Priority” item and change the priority of turning on devices. Gigabyte has it in the “BIOS Features” section.
And for MSI - in the settings (“Settings”).
That's all. Now you know how to set the BIOS to boot from disk and you can do it yourself. As you can see, there is nothing complicated here. The main thing is to find yours BIOS version, and then, following the instructions, figure it out once. In the future, you can enable booting from disk to Asus laptop(or any other) without any help.