Ami bios installation windows. Setting up the BIOS to install Windows from a boot disk

If you were looking for BIOS settings in pictures, then you have come to the right address.

The changes made will be protected by a lithium battery built into the motherboard and maintaining the required parameters in the event of a loss of voltage.

Thanks to the program, it is possible to establish sustainable interaction operating system(OS) with PC devices.

Attention! The present Boot network configuration section allows you to adjust parameters related to system boot speed and keyboard and mouse settings.

After finishing work or familiarizing yourself with the Bios Setup Utility menu, you need to press the hot Exit key, which automatically saves the changes made.

Section Main - Main Menu

Let's start working with the MAIN section, which is used to modify settings and adjust timing indicators.

Here you can independently configure the time and date of your computer, as well as configure the connected hard drives and other storage devices.

To reformat the operating mode hard drive, you need to select the hard drive (for example: “SATA 1”, as shown in the picture).

• Type - This item indicates the type of connected hard drive;
• LBA Large Mode- is responsible for supporting drives with a capacity of more than 504 MB. So the recommended value here is AUTO.
• Block (Multi-Sector Transfer) - For more fast work here we recommend choosing AUTO mode;
• PIO Mode - Enables the hard drive to operate in legacy data exchange mode. It would also be best to select AUTO here;
• DMA Mode - gives direct memory access. To get faster read or write speed, select AUTO;
• Smart monitoring - this technology, based on an analysis of the drive’s operation, can warn of a possible disk failure in the near future;
• 32 bit Data Transfer - The option determines whether the 32-bit data exchange mode will be used by the standard IDE/SATA controller of the chipset.

Everywhere, using the “ENTER” key and arrows, the Auto mode is set. The exception is subsection 32 Bit Transfer, which requires the Enabled setting to be fixed.

Important! It is required to refrain from changing the “Storage Configuration” option, which is located in the “System information” section and not to allow correction “SATADetectTimeout".

Advanced section - Additional settings

Now let's start setting up the basic PC components in the ADVANCED section, which consists of several sub-items.

Initially, you will need to set the necessary processor and memory parameters in the system configuration menu Jumper Free Configuration.

By selecting Jumper Free Configuration, you will be taken to the Configure System Frequency/Voltage subsection, where you can perform the following operations:

• automatic or manual overclocking of the hard drive - AI Overclocking;
• change clock frequency memory modules - ;
• Memory Voltage;
• manual mode for setting chipset voltage - NB Voltage
• changing port addresses (COM,LPT) - Serial and Parallel Port;
• setting controller settings - Onboard Devices configuration.

Power Section - PC Power

The POWER item is responsible for powering the PC and contains several subsections that require the following settings:

• Suspend Mode- set automatic mode;
• ACPI APIC- set Enabled;
• ACPI 2.0- fix the Disabled mode.

BOOT section - boot management

Here you can determine the priority drive, choosing between a flash card, disk drive or hard drive.

If hard drives several, then in subparagraph Hard Disk the priority hard drive is selected.

The PC boot configuration is set in the Boot Setting subsection, which contains a menu consisting of several items:

Selecting a hard drive

The PC boot configuration is set in the Boot Setting subsection,

• Quick Boot– acceleration of OS loading;
• Logo Full Screen– disabling the screen saver and activating the information window containing information about the download process;
• Add On ROM- setting the priority on the information screen of modules connected to motherboard(MT) via slots;
• Wait For 'F1' If Error- activation of the function of forced pressing “F1” at the moment the system identifies an error.

The main task of the Boot section is to determine boot devices and set the required priorities.

• ASUS EZ Flash– using this option, you have the opportunity to update the BIOS from such drives as: floppy disk, Flash disk or CD.
• AINET– using this option, you can obtain information about the cable connected to the network controller.

Exit section - Exit and save

Particular attention should be paid to the EXIT item, which has 4 operating modes:

• Save Changes– save the changes made;
• Discard Changes + EXIT– leave the factory settings in effect;
• Setup Defaults– enter default parameters;
• Discard Changes– we cancel all our actions.

Given step by step instructions Explain in detail the purpose of the main BIOS sections and the rules for making changes to improve PC performance.

Bios setup

Bios Settings - Detailed instructions in pictures

Do you want to install Windows 7 on your computer or laptop, but don’t know how? It's not as difficult as it seems. Although the first time, of course, will be difficult. But, once you figure it out, you will become a real “IT master” and will be able to independently install Windows 7 on any computer or laptop.

Before installing Windows 7, print this page. This will make your task much easier. After all, during the installation of Windows 7 there will be no access to the Internet. The only exception is when you have a second PC, laptop or smartphone, from which you can, if necessary, access the site again and see what to do next.

When is Windows 7 installed?

1. You bought new laptop or computer. Everything is clear here. In most cases, laptops or PCs either do not have any operating system at all, or do not have the one you need (for example, the ancient MS-DOS).
2. You didn’t like Windows 10 or 8, and you want to install the good old “seven”.
3. There was a malfunction, a virus or ransomware advertising banner was caught, the computer or laptop does not turn on, etc.

Let's dwell a little on last point. If problems occur with your computer or laptop, do not rush to reinstall Windows. Firstly, reinstalling the operating system is done as a last resort when other methods have not helped.

Secondly, remember that after installing Windows, all data is erased for at least local disk S. And these are all your programs: browsers, video players. And you will have to install everything again.

Thirdly, there are no guarantees that reinstalling Windows will help solve the problem. But the files on local drive C will be deleted permanently in any case.

Therefore, first, try to look for other solutions to restore your PC or laptop. For example, the following articles may help you:

You can also always look for other articles on this blog or through Google/Yandex.

Preparing to install Windows 7 OS

The first thing you need to do before installing Windows 7 on a laptop is to copy all important information. At least from local drive C. After formatting, all data on it will be erased.

If you bought new computer or laptop, you can skip this step. In all other cases, this is a prerequisite!

Therefore, save all files, documents, pictures, audio tracks and videos from your desktop and from the “My Documents” folder. It is also recommended to look at the local drive C - important information is also written to it quite often. Where to save? On a disk or flash drive. Another option is to upload files to online services (Yandex.Disk, Google Drive, etc.).

By the way, sometimes you can copy some programs along with the settings. For example, bookmarks and passwords from the browser you used.

The second point to make is to determine which Windows bit depth 7 You need x86 or x64. Everything is very simple here. If you have 4 GB of RAM (or more) installed on your laptop or computer, then you need to install Windows 7 x64, and if less, then x86.

Why is this so? The fact is that the x86 version does not see 4 GB of RAM. The maximum that it shows is 3.25 GB.

How to find out the amount of RAM? If you have a new computer, look in the documentation. And if it’s a laptop, then the characteristics are indicated on its case (or on the box).

If you already have Windows installed, then the amount of RAM can be viewed as follows:

The third point that must be completed before installation is to record the digital copy of Windows 7 on a disk or flash drive.

If you already have a boot disk (bought or given in a store along with your PC), then skip this step.

Burning a DVD is easy. After all, you've probably already recorded films, music, games? This can be done through Nero, Alcohol 120% and other programs.

As for the USB flash drive, there are some difficulties. Therefore, in this case, I recommend reading -.

Where to get the image or installation disk Windows 7? Can be purchased in store or online.

And the last thing you need to do before installing Windows 7 is to prepare drivers for your laptop or PC. Driver discs are usually included with your computer. If you have them, then you can skip this point.

Laptop owners are not provided with disks, so you need to install drivers from the manufacturer’s official website (search by the name of your model).

If you skip this step, you may be left without internet. After all, you need to install a driver for it. USB ports may also not work. That is, a mouse. And in the end you will have to go to a friend or acquaintances and download the drivers from them.

This completes the preparatory process. Check again that you have saved all important data, then connect a USB flash drive or insert a DVD with the installation Windows way 7 and reboot your laptop/computer.

Setting up BIOS for installing Windows 7

Perhaps setting up the BIOS is the most difficult stage for most users. Especially for beginners.

In addition, the difficulty here is that the BIOS versions may differ on different PCs and laptops. And the buttons to enter the BIOS too. As a result, some users cannot even enter the BIOS. Therefore, to avoid problems with this, let’s consider in detail what needs to be done and how.

So, when you have prepared everything, restart the computer, and immediately when the screen turns on, repeatedly press the Del button (for PCs) or F2 (for laptops). If you did everything correctly, you will see the BIOS screen. Something like this:

Or this:

There are 4 devices displayed here – First Boot Device (first), Second (second), etc. By default, the first one is the hard disk (Hard Disk or HDD). And you need to put the CD-ROM (disk) or USB-HDD (flash drive) on the first line - depending on which device the seven will be installed from.

How to do this? On a PC, you usually need to highlight the first item, press Enter and select the desired option from the drop-down list.

On laptops, the device boot priority can be changed using the arrows or the F5-F6 buttons. Control keys are usually located on the right or at the very bottom of the BIOS screen.

When you select First Boot Device in the first paragraph required device(CD-ROM or USB-HDD), be sure to save the settings, and then exit the BIOS. Which save button? This is also written at the bottom of the screen (usually F10).

If you have BIOS UEFI ( new version), then simply drag the desired icon (disk drive or flash drive) to the first place with the mouse and click “Exit” in the upper right corner.

After this, the laptop or computer will reboot and the installation of Windows 7 will begin.

If all this is too complicated for you, there is another option to configure booting from a disk or flash drive without going into the BIOS. For this you can. But this method only works on new PCs and laptops.

Step-by-step instructions for installing Windows 7

Immediately after rebooting, you will see a black screen with a single line.

Here you need to press any button - for example, Space.

If this message does not appear, it means that you did not save the BIOS settings. Check them again. If everything is fine there, then either you wrote it down incorrectly bootable USB flash drive, or the disk is damaged and the computer/laptop does not see it (the disk drive may not be working).

After clicking the button, you will see a black screen with the words “Windows is downloading files...”.

Wait for the system to copy everything. After this, a new window will appear on the screen. Select Russian language and click “Next”.

In the new window, click the “Install” button.

If there are several versions of Windows 7 recorded on a disk or flash drive, you need to choose the appropriate one. We have already figured out the x86 and x64 bit depth, so decide for yourself here. As for the version, it is better to choose “Maximum”. Although there is almost no difference between it, “Home”, “Beginner” and “Professional”, so this is not so important. Select the desired item and click “Next”.

Agree to the license terms (check the box) and proceed further.

Choose the full installation.

A window will open asking you to select a partition for installing Windows 7. But here it’s worth going into more detail.

How to partition a disk during first installation?

If the installation is performed on a new computer or laptop (i.e. for the first time), then you will see only one line - “Unallocated disk space.”

And in this case, you need to split the hard drive into 2 partitions - local drive C and D (more is possible, but this is not necessary). To do this, select this line, click the “Create” button, indicate the disk size (in megabytes) and click the “Apply” button.

Don't know how much 50 GB is in megabytes? Write a number at random - for example, 50000. And then see what volume the system will show for the created partition. If it turns out too little, select it, click the “Delete” button, and try again, specifying a larger number.

For Windows 7 to work properly, you need to create a special partition with a capacity of 100 MB where boot files will be stored. So when the next window pops up, just click OK.

When you specify the required volume for local drive C and create it, “Partition 2” will appear. This is him.

After that, select the “Unallocated space” line again, click “Create”, and then the “Apply” button. After this, local disk D (“Partition 3”) will appear.

If you forget to do this, then after installing Windows 7 there will be only one local drive C. And partition D will “evaporate” into thin air. You'll have to reinstall Windows again. Therefore, before moving on, make sure that the “Unallocated Space” option is no longer there.

To install Windows on local drive C, select “Partition 2” and click “Next”.

If you reinstall Windows 7, then the following window will appear on the screen:

In this case, you need to select “Section 2” and click the “Format” button. This will delete all data on it. When the formatting process is complete, select this section again and click “Next”.

By the way, if you want to distribute the space between local drive C and D differently, you can delete them and create them again, specifying a different size. How to do this is written in the previous paragraph. But remember: in this case, the information will be deleted on the local drive D too! As a result, your PC or laptop will be clean, as if you had just bought it. Therefore, perform this procedure only if you have saved all the necessary files.

Continue installing Windows 7

So, you were able to partition your hard drive or format it before installing Windows 7 and clicked the “Next” button. After this, the operating system will begin to install. Wait until the files are copied.

After this, the computer/laptop will reboot and you will again see the familiar black window with a single line.

Under no circumstances press anything on the keyboard, otherwise everything will start all over again.

After this, the computer or laptop will reboot a second time.

Well, the main thing is already behind us, all that remains is to fill in some fields:

1. Indicate the username and computer name (if you plan to play games, it is better to write in Latin).
   
2. You don’t have to set a password - in that case, just move on.
   
3. If you have a digital copy, you also don’t have to specify the activation key (usually Windows 7 is activated automatically when you connect to the Internet). To skip this step, click Next. And if you bought a disc, then enter here the code that is written on the sticker.
   
4. Here it is recommended to select the “Delay decision” option (you can change these settings later).
   
5. Select your time zone, specify the time and click “Next”.
   
6. If Windows automatically finds drivers for the Internet, then in the new window select “Home Network”.
7. Wait while the desktop setup is completed.
   
8. Congratulations – you have just been able to install Windows 7 on your laptop or computer yourself.
   

What to do after installing Windows 7?

First of all, reboot your laptop or computer, go into the BIOS and change the device boot priority back. That is, put the hard drive (Hard Disk or HDD) in first place, and lower the CD-ROM or USB-HDD to second or lower.

Also, after installing Windows 7, the Internet and USB connectors may not work. This is because there are no drivers. Therefore, at the next stage you install them.

This is precisely why you need to prepare all the necessary drivers in advance before installing Windows 7. Especially for the Internet. After all, how will you download them if you don’t have access to the network?

And one more nuance - when you turn on your computer or laptop, you may see two Windows 7 (during boot).

The first one was installed by you, and the second one was saved in hidden section(“reserved by the system”). However, the extra line can be deleted. To do this, do the following:

Ready. After reboot second Windows 7 will no longer exist, and you will not see the operating system selection menu.

If you have any questions, ask them in the comments.

So, first you need configure BIOS. To do this, turn on the computer and immediately press the key "Delete"(on some keyboards, short “Del”) on the keyboard until we get to BIOS(by the way, I almost forgot, your boot Windows disk XP must already be in the CD/DVD drive).

Your BIOS may look different. It depends on the manufacturer and. But don't be afraid, the settings are basically the same. In BIOS we will work with the arrow keys ←→↓ . So, we went into the BIOS, then go to the tab Advanced BIOS Features:

The name of the tab may be different in your BIOS. If so, then go through the tabs and find which one contains device boot options. In my case, this is what the device boot parameters look like:

Now our task is to make sure that the computer boots from the disk, i.e. on "First Boot Device" we will deliver CDROM. Let's do it like this (select the option opposite First Boot Device , press Enter on the keyboard and use the arrows to select CDROM):

It should look like this:

Maybe this confirmation will appear. Click "Y" on the keyboard, which means "Yes"(Yes), and press Enter:

Next there will be a reboot. We are waiting for such an inscription to appear "Press any key to boot from CD", which means « press any key to boot from CD« . Press any key:

And the installation program will start. After checking the system configurations, you will be prompted to Restore existing system or install a new OS. Choose "ENTER=continue":

Then we accept the license agreement by pressing the button F8:

Then select the partition on which Windows will be installed. This is usually the section C:

Don't be afraid, click WITH:

Choose "Format partition in NTFS system":

Confirm with the key F:

File copying will then begin automatically:

After this, the computer will restart. Never click on "Enter - restart computer", otherwise the installation will be interrupted. Let the computer reboot itself:

After the reboot you will again be prompted to press any key, nothing don't press and then you will start the installation again.

After the reboot, the installation will continue, but in a more attractive environment:

Set the time, date, time zone and move on:

If this message appears, click OK:

Click again OK:

Select an item "Delay this action":

We write the name account. You can have up to five if there are several users:

That's it, the installation is complete!

Hope Windows XP installation was successful. All that remains is to install the drivers for normal operation of the computer. Good luck!!!

BIOS is a faithful assistant when Windows crashes, connects and configures new peripherals, and optimizes the temperature of a PC and laptop. The user's goal in this case is to enter the BIOS in order to move the PC or gadget from a “dead point” when further work on the computer suddenly became impossible.

Why do you need a BIOS program?

BIOS is a firmware, firmware of a PC/laptop motherboard or tablet monoboard, independent of the operating system installed on the computer. It allows you to use the following features:

• starting a PC from external media (flash drives, memory cards, external storage and CD/DVD/BD-RW drives);
• “overclocking” the processor, adjusting the temperature and PC cooling systems;
• enable/disable and configure hardware interfaces computer system or gadget.

The first option is used most often. You may never access the rest of the BIOS functions (there is no need), but you will have to reinstall Windows dozens of times while your PC, laptop or tablet is alive.

Entering the BIOS on computers and laptops with a keyboard before Windows boots

Before looking in the settings of different versions of Windows for options to enter the BIOS, it is worth mentioning about entering the BIOS before loading the operating system. This is the oldest, but at the same time proven method, which was used by the previous generation of users.

The most common single keys for entering the BIOS are Del, Esc and F2. They should be tried first if the instructions from the PC or laptop are not available, but you still need to enter the BIOS urgently.

Table: keys for entering different BIOS versions

On most laptops from the 2000s. release, AMI BIOS is installed, and on most system units - Phoenix/Award BIOS. Other BIOS versions are less common.

Different laptop manufacturers also dictate their own rule - the BIOS entry keys can differ significantly.

Table: keys to enter BIOS on different laptops

Laptop manufacturers	Keys or key combinations to enter BIOS
F1	IBM (most computers)
F2	Dell Inspiron, Dell Presicion, IBM E-Pro Laptop
F10	Compaq
Del	CompUSA, eMachine, Intel Tangent, Roverbook, Tiget
Esc	Cybermax
F1, F2	Gateway, H.P.
F1, F3	Dell 400
F1, Esc	Toshiba
F2, F3	Sony VAIO
F2, Del	Dell Dimension, Dell Optiplex
F2, Fn+F1	Dell Latitude
F1, F2, Del	Micron, Packard Bell
F1, F2, Ctrl+Alt+Esc	Acer
Ctrl+Alt+Esc, Ctrl+Alt+Del	AST
Ctrl+Alt+Del, Ctrl+Alt+Ins	IBM with PS/2 keyboard

Video: BIOS entry keys for all PCs and BIOS versions

How to enter BIOS after Windows starts

One could, perhaps, stop at “hot” keys if it were not for ultra-high-speed flash drives (SSD drives), which are installed even in very budget laptop models (as of 2017 - 7–10 thousand rubles). Already works for them Windows version 8.1/10. The fact is that the transition to launching from an SSD drive in Windows 8.1 or 10 occurs so quickly that you are unlikely to have time to press the coveted key.

The latest models are gone - and smartbooks with Windows 10 are no longer equipped with BIOS, but with its continuation - UEFI.

With Windows 2000/XP/Vista/7

Unlike much more new Windows 8.1/10, in previous versions of Windows there is no extensive boot menu, offering almost a dozen options for fixing problems when starting the OS. So do it the old way. There are no special boot options here - use the hotkeys from the list above, because... outdated versions Windows is recommended mainly for older PCs and laptops that are not equipped with UEFI and other launch “improvers”.

With Windows 8/8.1/10

Starting with Windows 8, you can get into the BIOS by selecting a special restart option in Windows settings, or by command line.

Restarting Windows 8/8.1/10 to enter BIOS

You cannot go directly from Windows to the BIOS - the OS must shut down in the current session.

1. Give the command “Start - Settings - System - Update and Recovery - Recovery”. Go to Windows recovery 10
2. Select specific Windows 10 boot options and click the Restart Now button.
3. After restarting, wait for the boot menu Windows 10
   Select the desired action
4. In the boot menu, give the command “Diagnostics - Additional options- UEFI Firmware Settings".
   Go to EFI settings in boot menu
5. Confirm BIOS startup.
   Confirm startup in BIOS/UEFI mode

The PC or laptop will start in UEFI where you can select the advanced BIOS mode.

Calling the Windows 10 emergency boot menu without logging in

This method is suitable if the system cannot start a new session, for example, due to incompatibility of any drivers or applications with Windows 10.

Do the following.

Video: Common methods of entering BIOS under Windows 10

Entering BIOS/UEFI mode using the Windows 10 command line

Do the following.

The system launcher "shutdown.exe" is a tool that allows you to close your current Windows session and shut down the OS. By running the ShutDown.exe program from the C:\Windows\ folder, you will also allow the system to shut down correctly without losing data - even when, for example, if the system is infected with a virus that has blocked the Windows Start button and taskbar, you still need to restart normally PC.

Other options for entering BIOS

There are also older ways to get into the BIOS - connect a keyboard with an outdated PS/2 interface, or switch a jumper on the motherboard of a PC or laptop.

Resetting the BIOS using a jumper

If entering the BIOS is unavailable due to manufacturer settings, you need to switch the jumper on the motherboard back and forth, turning on the PC each time in order BIOS firmware did a little work.

Move the CMOS jumper to a different position or remove it

Connecting a PS/2 keyboard to work with a PC

First of all, this problem faces owners of PCs and laptops that already have a version of Windows 10 and UEFI firmware instead of BIOS, but have a PS/2 keyboard lying around, purchased 10–15 years ago.

By default, the BIOS/UEFI is already configured to work with USB devices - by connecting your adapter to any of the USB ports, you get a working PS/2 keyboard and/or mouse.

Today there are practically no computers left that are not equipped USB ports. Overly outdated “system units” and laptops from the distant 90s don’t count - people threw them away, and there is no point in remembering such computers. Judge for yourself: who needs computers with Windows 95/98 that have a Pentium 1/2/3 processor with 300 MHz frequencies, 16–64 MB of RAM and a 10 GB hard drive? And there are not very many programs for Windows 9x.

Based on the above, connecting keyboards and mice with an outdated PS/2 plug is easier to do using a special PS/2-USB adapter.

Combined USB-PS/2 adapters allow you to connect a mouse and keyboard to one port

There are also reverse adapters that selectively connect mice and keyboards to PC “system units” that have the PS/2 interface itself. Connect to the USB port on the cord as wired mouse, and nano-receiver (or Bluetooth module) from a wireless mouse or keyboard. If you connect a mouse or keyboard to the wrong socket through such a converter, the mouse and keyboard themselves will not work; do not confuse the devices.

Unlike universal adapters, these converters are selective to the type of device

Adapters for connecting wireless mice and keyboards to the PS/2 socket on system unit PCs allow you to get rid of the age-old problem of wires and cables - chafing of the “cores” on bends, leading to the device not working.

You can order such adapters on the Internet, for example, in the Ozon or AliExpress store - the latter, by the way, carries many goods from China, including various small items, to Russia for free, final delivery is carried out to the Russian Post office closest to to the user. In Russian hypermarket chains, for example, Yulmart or DNS, there is also a lot of this stuff. Don't create unnecessary problems for yourself.

The blue-violet adapter, like the PS/2 connector itself, means that you are working with a keyboard. The green adapter and connector are the PS/2 interface for the mouse.

Today, USB keyboards and mice are actively replacing their outdated PS/2 counterparts. On a more or less modern PC or laptop, you no longer need to do anything.

You should not connect other devices via a “reverse” adapter (for example, a flash drive) - the PS/2 bus was not designed for high-speed data streams of tens and hundreds of megabits. The performance of the PS/2 interface is enough to control the mouse pointer and enter text from the keyboard - it was originally “tailored” for input devices. At worst, you can try connecting a joystick, but its correct operation is not guaranteed.

Is it possible to enter BIOS without restarting Windows

To enter the BIOS, any version of Windows must end the current session and enter a mode in which the power of the PC or laptop can be forcibly turned off (if required). Give the command “Start - Shut down - Reboot” or turn off your PC or laptop by pressing and quickly releasing the power button (if the power button action is set to shutdown Windows operation 10).

In the MS-DOS operating system, the way to go directly to the BIOS was extremely simple - the user pressed the Reset button on the system unit, and when restarting the PC, in turn, a hot key (most often Del) was used. Before this, it was necessary to complete all read/write operations on the disks.

What to do if you can’t enter the BIOS

PC motherboards, laptop mainboards and tablet monoboards are quite reliable, and you should not have any difficulties entering the BIOS. However, entering the BIOS, or rather, not starting a PC or gadget with Windows 10, is mainly due to the following reasons.

1. Failure of the ROM chip(s) in which the BIOS firmware is written. On system systems, the ROM chip is often not soldered into motherboard, but has a special socket-block that allows you to remove it and replace it. If you are technically savvy and have at least a little experience in servicing and replacing components, you can take the risk of changing the ROM yourself by ordering it on the manufacturer’s website or in popular Chinese stores, or by purchasing BIOS chip directly to the SC in your city. On laptops and tablets, replacement mainly helps by re-soldering it on a special soldering station, available in every computer service center that provides a full range of PC repair services, including replacing capacitors on boards.
2. Accidental flashing (updating) of the BIOS to an incompatible version. If you take the risk of updating the BIOS version yourself, or even changing the BIOS to UEFI in the hope that previously inaccessible functions will open and the mouse will work, such an action is often rejected recklessly, because the ROM parameters may not be so perfect as to “pull” GUI UEFI firmware. Restoring (reprogramming) the ROM is also carried out by the service center.
3. You press the wrong key or key combination to enter the BIOS. Check the assignment of the key(s) to enter the BIOS specifically for your BIOS version and/or laptop or tablet manufacturer.
4. The manufacturer of the PC, laptop or tablet motherboard has closed (classified) the ability to enter the BIOS using a special key combination that is not mentioned in the instructions. This is a very rare case when service centers, in pursuit of profit, can agree with PC and gadget manufacturers not to indicate either in the instructions for the device itself or on the display with the corresponding inscription before starting the OS, how the user can get into the BIOS.
5. PC keyboard (or external keyboard tablet) does not have time to “come to life” if the transition to launching Windows 8.1/10 is too fast. The methods listed above will help here.
6. The manufacturer/seller has entered a password that prevents you from entering the BIOS. This is done for commercial reasons - so that in the event of any actions, including reinstalling Windows, the user paid for such an action. Resetting the settings using the CMOS jumper on the PC motherboard will help here.
7. The keyboard is simply faulty. Repair or replace it. Perhaps a certain group of keys does not work, including, say, the Del, F2 or similar key. Old “system systems” did not work at all without a keyboard.
8. You pressed the required key (or combination of keys) too late - the OS has already loaded (Windows, MS-DOS, Linux, Android x86, LiveCD/DVD/USB loader or its equivalent, installation/update program for the corresponding OS, etc.) . Wait for the OS (or a tool that emulates its operation) to load and normally end the session that just started. Wait until the PC resets - this is indicated by the logo of the manufacturer and/or distributor of computers of your series/batch appearing on the screen.
9. The fast boot function interferes. It needs to be disabled.

Video: problems entering the BIOS - the built-in keyboard does not work well

How to disable fast boot in Windows 10

Do the following.

Restart your PC or tablet. Most likely, you will have the opportunity to starting Windows 10 still enter the BIOS/EFI using the key, according to the instructions for your computer or gadget.

Errors when entering BIOS

BIOS, like any program (or software package, operating system), including your Windows 10, contains many errors. It won’t hurt to know them if entering the BIOS and/or starting a PC/laptop is accompanied by the BIOS refusing to control a particular device, or the PC refusing to start Windows.

Message	Description of the problem
8042 Gate A20 Error	Keyboard controller problem (you need to replace the controller or motherboard)
Address Line Short	Problem with motherboard expansion cards (possibly short circuit; If after checking it is not possible to boot, you need to change the motherboard)
BIOS ROM Checksum Error - System Halt	Error checksum permanent memory chips (you need to reflash the chip or replace it)
BIOS Update For Installed CPU Failed	BIOS version mismatch specific model processor
Bad PnP Serial ID Checksum	Plug and Play device checksum error (remove the devices, carefully inspect and install again; if this does not help, you need to change the faulty devices)
Boot Error - Press F1 To Retry Disk Boot Failure, Insert System Disk And Press Enter	Boot disk not detected (often happens if BIOS Setup is the first boot sector there is a floppy drive or drive for floppy disks, and when the computer is turned on, there is a non-system disk or floppy disk in this drive - this often happens when, for example, they watch a movie from a disk or listen to music, and then forget to remove the disk. You need to remove the disk and restart the computer, or better yet, in the settings, make it boot from the computer’s hard drive)
Bus Time Out NMI At Slot XXX	Happens if EISA bus is installed (try rebooting)
CH2 Timer Error	Second timer initialization problem (check peripherals)
CMOS Battery Failed	The CMOS battery is dead (replace the battery)
CMOS Battery Has Failed	Likewise
CMOS Battery State Low	Likewise
CMOS Checksum Bad (Error, Failure)	CMOS chip checksum error (check the battery, if that doesn’t help, reprogram the BIOS chip)
CMOS Date/Time Not Set	Errors when setting the system time and date (fix the error in the BIOS, check the functionality of the battery)
CMOS Display Type	The system monitor characteristics are incorrectly specified in the BIOS
CMOS Memory Size Mismatch
CMOS System Options Not Set	The contents of the CMOS memory are damaged (check the battery, it may require flashing)
Cache Memory Bad, Do Not Enable Cache	Cache error (replace chip)
Checking NVRAM	Information that the system is updating the computer configuration (if it appears frequently, check the motherboard battery)
DMA#1(2) Error	Error initializing the DMA channel (possibly a problem due to the connected peripheral device; the motherboard may need to be replaced)
DMA Bus TimeOut	The system does not receive a response to the DMA controller request (check peripherals and replace faulty ones)
DMA Error	DMA controller error (you may have to change the motherboard)
Display Type Has Changed Since Last Boot
Drive X: Error	Problems with the hard drive (check the BIOS settings, cable; if the drive is damaged, format it, or better yet, buy a new one)
Drive X: Failure	Cannot initialize hard drive(check the BIOS settings, cable; if the disk is damaged, format it)
ECC Error	Problems with RAM(memory needs to be replaced)
EISA CMOS Inoperational	EISA board CMOS memory chip error (check battery or replace chip)
EISA Configuration Checksum Error	EISA board CMOS memory checksum error (check BIOS settings and battery)
EISA Configuration Is Not Complete	EISA board CMOS memory chip error (check BIOS settings)
Error Encountered Initializing Hard Drive	Problems with hard initialization IDE drive(check the BIOS settings, the correctness of the jumpers; if that doesn’t help, replace the device)
Error Initializing Hard Drive Controller	Problems with initialization IDE controller(check jumpers, BIOS settings)
Expansion Board Not Ready At Slot XXX	Problems with initializing the board in slot XXX (check the connection, the board or the slot itself may be faulty)
Extended RAM Failed At Offset: XXX	Error initializing extended memory (check connections, or replace memory)
FDD Controller Failure	Floppy drive controller initialization error (check connections or replace controller)
Floppy Disk Controller Resource Conflict	A conflict between the floppy drive controller and another device (you need to disconnect the device, work, and then connect it again)
HDD Controller Failure	IDE controller initialization error (check jumpers, BIOS settings)
Hard Disk Install Failure	Problems with initializing the IDE hard drive (check the BIOS settings, jumpers, cables, if that doesn’t help, change the faulty device)
Hard Disk Diagnosis Failure	Problems with hard drive initialization (check BIOS settings, jumpers, cables, if that doesn’t help, change the faulty device)
Hard Disk Fail (20) Hard Disk Fail (40)	Likewise
I/O Card Parity Error at XXX	Expansion board parity error (check board installation)
INTR #1 Error	Problems with initializing the first channel of the interrupt controller (IRQ0-IRQ7)
INTR #2 Error	Problems with initializing the second channel of the interrupt controller (IRQ8-IRQ15)
Incorrect Drive A/B - Run Setup	Floppy drive initialization error (check cable, BIOS settings)
Disabled Drive Specification	The hard drive is damaged or, if it is new, is not partitioned (use the FDisk command)
Invalid Media In Drive X:	Likewise
Invalid System Configuration Data	Error in Plug and Play device configurations (reset the data using the Reset Configuration Date option)
Invalid System Configuration Data - Run Configuration Utility Press F1 to Resume, F2 to Setup	Likewise
K/B Interface Error	Keyboard problem (check connection)
Keyboard Error	Likewise
Keyboard Error Or No Keyboard Present	Problems with keyboard operation (see if any key is pressed)
Keyboard Failure, Press To Continue	Likewise
Keyboard Is Locked Out - Unlock The KeyKeyboard Is Locked	Sticky keys on the keyboard
Memory Address Error at XXX
Memory Parity Error at XXX	Likewise
Memory Size Decreased	The amount of RAM is incorrectly specified in the BIOS.
Memory Size Has Changed Since Last Boot	Likewise
Memory Size Increased	Likewise
Memory Test Fail	Problems with RAM (check the power supply and the memory itself)
Memory Verify Error at XXXX	Likewise
Missing Operation System
Monitor Type Does Not Match CMOS - Run Setup	The system monitor is incorrectly specified in the BIOS
NVRAM Checksum Error	NVRAM memory error (check BIOS settings and battery)
NVRAM Cleared	Likewise
NVRAM Data Invalid	Likewise
No ROM Basic	Error when trying to boot the system from the hard drive (possibly caused by a virus, you will have to partition the disk again with the loss of all data)
Off Board Parity Error	Trying to boot from a floppy disk when there is no system floppy disk in the drive (remove the floppy disk)
Offending Address Not Found	Problems with devices not integrated into the motherboard (processor, RAM...)
Offending Segment	Error unknown device(most likely there are problems with data transfer or a conflict when accessing ports - check the BIOS)
On Board Parity Error	Problems with devices integrated into the motherboard (hard drive controller, PCI bus...)
Onboard PCI VGA Not Configured For Bus Master	Problem with integrated video card
Operating System Not Found	Error when trying to load the operating system - it was not found (possibly caused by a virus, you will have to partition the disk again with the loss of all data)
Override Enabled - Default Loaded	The system cannot boot with the BIOS values ​​set, all parameters will be reset to factory values
PCI I/O Port Conflict	PCI bus device conflict - trying to use the same I/O port (update hardware configuration)
PCI IRQ Conflict	Likewise
PCI Memory Conflict	PCI bus device conflict - trying to use the same memory area (update hardware configuration)
Parallel Port Source Conflict	Conflict between devices using parallel port (update hardware configuration or configure manually)
Parity Error	RAM parity error
Press A Key To Reboot	Problems booting the system (if the message appears frequently, change the motherboard)
Press ESC To Skip Memory Test	Pressing the ESC key will check the RAM using an abbreviated program
Press F L To Disable NMI, F2 To Reboot	Interrupt controller problem - it is impossible to determine the device that submitted a request for a non-maskable NMI interrupt
Primary Boot Device Not Found	The device configured in the BIOS as the primary boot disk was not found (there may be no system floppy disk or disk - insert the floppy disk or disk, or make the appropriate settings in the BIOS)
Primary Master Hard Disk Failure	Problems with testing the Primary Master hard drive (check the BIOS settings, cables, jumpers, try connecting another drive; you may have to change the cable or hard drive)
Primary Slave Hard Disk Failure	Problems with testing the Primary Slave hard drive (check the BIOS settings, cables, jumpers, try connecting another drive; you may have to change the cable or hard drive)
Primary/Secondary IDE Controller Resource Conflict	Device conflict - the IDE controller is accessing already occupied computer resources (update the hardware configuration or configure it manually)
RAM Parity Error - Checking For Segment	RAM parity error (maybe the memory stick is installed incorrectly, try setting the slowest memory settings in the BIOS)
Real Time Clock Error	Errors in setting the system time and date (check the battery, BIOS settings, if that doesn’t help, change the motherboard)
Real Time Clock Failure	Likewise
Secondary Master Hard Disk Failure	Problems with testing the Secondary Master hard drive (check the BIOS settings, cables, jumpers, try connecting another drive; you may have to change the cable or hard drive)
Secondary Slave Hard Disk Fail	Problems with testing the Secondary Slave hard drive (check the BIOS settings, cables, jumpers, try connecting another drive; you may have to change the cable or hard drive)
Serial Port 1 Resource Conflict	Conflict of devices using serial port COM1 (update hardware configuration or configure manually)
Serial Port 2 Resource Conflict	Conflict of devices using serial port COM2 (update hardware configuration or configure manually)
Should Be Empty But EISA Board Found	EISA expansion card error (update hardware configuration or configure manually)
Should Have EISA Board But Not Found	EISA expansion board error - does not respond to system requests (update the hardware configuration or configure manually, if that does not help, replace the faulty hardware)
Slot Not Empty	An unknown expansion card was detected on the ELSA bus (check your BIOS settings)
Software Port NMI Inoperational	Problems with the NMI software interrupt port (check the BIOS settings, you may have to change the motherboard)
State Battery CMOS Low
Static Device Resource Conflict
System Battery Is Dead	The CMOS memory battery is low (replace the battery)
System Battery Is Dead - Replace And Run Setup	Likewise
System CMOS Checksum Bad	CMOS memory checksum error (check the battery, replace if necessary, if that doesn’t help, change the motherboard)
System Device Resource Conflict	Device conflict (update hardware or configure manually)
System Halted, (CtrlAltDel) To Reboot	Stopping the system (press Ctrl+Alt+Del to reboot the system)
System RAM Failed At Offset: XXXX	Error initializing RAM (maybe the memory stick is installed incorrectly, try setting the slowest memory settings in the BIOS)
Type Display CMOS Mismatch	The system monitor type is incorrectly specified in the BIOS
Uncorrectable ECC DRAM Error	Problems with RAM (you may need to replace the memory)
Unknown PCI Error	Unknown PCI bus error (if all PCI cards are working normally, change the motherboard)
Update Failed	Failed to update information about new Plug@Play devices (check battery or replace system board)
Update OK!	Information about new devices was updated successfully
Wrong Board In Slot	EISA expansion board error (check BIOS settings or replace faulty devices)

BIOS will help where Windows - or another OS - is already powerless. If there were no BIOS, it would be impossible to revive the PC in emergency situations. Great work to you - and less problems associated with its downtime!