The keyboard is hired what to do. What to do if the keyboard does not write letters

Telephone

It often happens that you are preparing to perform some important work, and then the BAT - and the keyboard does not work on the computer. What to do in this case? How to cope with this misfortune? Understand this and find solutions will be easy. This article will consider the question that often arises from novice users of home PCs or already experienced professionals. Yes, it's all about the keyboard - it works, it is not, and you need to do work. The reasons for such problems can be many, and most of them can solve the user itself, without leaving the workplace. The issue of buying a new device can be postponed to the full exhaustion of the resource of the existing "capricious" girlfriend. In addition to attention and the ability to correctly perform actions, special skills from the user in the process of solving the problem will not be required. For any model of any manufacturer of a computer keyboard, the reasons for refusing to work and the paths of their high-quality elimination in a short time will be given.

Possible causes of non-working device

By acting by the method of legendary Sherlock Holmes - the "deduction" method - you can determine what broke or what prevents the keyboard to perform your work. The factors of such problems can be called:

human, that is, the breakdown is caused by the actions of the user itself;
iron, and in other words, equipment failure;
software - Violation of settings and required programs And their complexes.

Understand why the keyboard does not work on the computer, what to do in this case, you can, having studied and passing possible reasons. Based on the selected factors, the reasons for violations in the device may be such situations:

1. If the user himself has led to problems in working with a keyboard:

the integrity of the device connection ports is broken, or it is interrupted (transmitted) its cable;
moisture getting inside the input device due to the overfit cup of tea, coffee or direct rain from the street;
excessive contamination of the internal parts of the keyboard dust, animal wool, eating crumbs and other garbage.

2. In case the problem is in the equipment itself:

the keyboard was not initially a working;
the electronic component of the keyboard or its individual elements failed and require the intervention of specialists of service centers;
short circuit or voltage jump caused by both problems with other elements of the computer (power supply, motherboard) and failures in the centralized electrical network.

3. The main causes of software failures in the keyboard work can be called:

failure of the device drivers;
fixed the basic settings of the motherboard (BIOS);
disabled for some reasons in the operating system itself.

In more detail, all these reasons and options for their decisions are considered further.

Cable or port

How to find out about the presence of this reason why the keyboard does not work on the computer, what should I do if confirmation is found exactly this problem? You can answer this question after a certain simple diagnosis has been performed. To do this, the user needs to do the following.

1. To check the integrity of the cable:

To look at the display on the keyboard itself and try to enable / disable the "Caps Lock" buttons and "Lock". If the LEDs are glow, then, most likely, the reason is not in the cable.
If the LEDs are not glow, connect the keyboard to another free port (YUSB or PS / 2, depending on the type of device). LEDs lit up - the reason was found. Problem in spoiled port.

2. How to check the keyboard connection port to work:

Take any other device with the same connection type and try to connect it to this port - if it works, it means that it is not a port, but in the keyboard cable or its electronic component.
If another device has not earned, you need to double-check the motherboard settings (BIOS) for the disconnected power for the specified port.

After such a check, there must be a result that gives an understanding of what was broken, or allowing to understand that the case is not in the cable and port of the keyboard. Elimination of a broken cable or port is possible only with professionals in computer and office equipment repair centers.

Faulty device

Although it is pretty ridiculous, but there are cases when the user tries to connect the "dead" keyboard and is very nervous that it does not work. It happens on forgetfulness and in ignorance. Anyway, passing all the items of analysis, you can easily understand everything.

Very slightly broke

How to understand why the keyboard does not work on the computer, what to do? But at the same time, it blinks with light bulbs (or just picks up)? In this case, frequent cause of the problem is ingestion of the device of the liquid: tea, coffee, beverages or just water. All this fluid is conductive, and therefore leads to a short circuit that can cause the bending of the sensitive electronic elements of the keyboard or port controllers on the motherboard.

In order not to buy a new device, the user can carefully disassemble the keyboard and dry all the elements. With a probability of 50 percent, he can expect the success that the girlfriend "will revive".

Rubbish woke up, or oh, these cats

Feed meals in the workplace, as well as the presence of pets with wool very badly affect the PC input device. And then the question arises: "The keyboard does not work on the computer, what to do in this case?" The answer is simple - the same as with a liquid filled with a liquid, it is necessary to fully clean its inner part. If you are lucky, lumps and mud bundles did not have time to lead to short closure Elements, and then everything will work again.

Factory marriage, or time takes his

Keyboard as an electronic technology can be collected with a marriage, leading to a quick way. In this case, it is necessary to send it to repairs in service center manufacturer. If the warranty service life has already expired, then it is necessary to compare prices for repairs in paid workshops and a new keyboard, choosing for yourself best solution. You can identify such problems by way, similar to the diagnosis of the device cable and the connection port.

Voltage jump, or electrician electrician crashes

If the keyboard does not work in this case, what to do? When loading, you need to pay attention to how the computer itself behaves: everything passes as usual or the launch occurs (does not happen) with a failure. The result of a PC start failure can be a voltage jump in the electrical network or failure of the power supply, which, in turn, can affect both the keyboard and the performance of the entire computer device as a whole. To determine the keyboard malfunction, in this case you need to connect it to another computer and tested.

Drivers Flowers

It did not fit the listed. The keyboard does not work on the computer, what to do? Windows 7 Genius keyboard sees well and, if possible, picks up the drivers for them. But it happens that the device of another company or special multimedia featuresthen they require their separate installation. If suddenly such a keyboard stopped working, perhaps just flew the drivers for it. It is easy to check in the "Device Manager" - if the keyboard has an icon of a yellow question mark, it means that it is the drivers.

Bios lost settings

If the keyboard does not work on the computer, what to do? Windows 8, as well as other more early versions OS, persistently does not want to connect the device. In this case, you need to restart the computer and look into the settings of the motherboard (BIOS) by clicking when "divides" or "F2" is started (for some computer devices). Among the tabular settings, you must first compare the date and time with the real one (if it shows very old, then it may be necessary to replace the battery on the motherboard), and then find a line with an indication of power supply to ports (USB or PS / 2). If disabled, enable. You can also simply reset the settings to the factory, selecting them in the proposed menu.

Antivirus, or OS protection programs

It happens that the keyboard does not work on the computer, what to do? But the virus picks up and at the same time issues a message about the found Trojan or malicious program. In this case, most likely, the drivers or control program of the keyboard keys were adopted for the virus, which led to blocking the access of the device to the operating system and, accordingly, to its inoperability. Here you will need to create an exception rule for antivirus in its settings, indicating the way installed drivers either programs.

It also happens that the keyboard does not work on the computer, what to do? The virus may affect the drivers and device management programs, and therefore it is impossible to create an exception rule. First you need to reinstall the spoiled files, and then carry out the full scan of the computer for the presence of malicious software.

The failure of any of the elements of the computer peripherals means the difficulty or complete termination of the entire set. If the keyboard does not work, then work with the computer becomes impossible, because it disappears the possibility of entering data. The use of the on-screen keyboard does not solve the problem, as its functionality is substantially limited and does not provide full-fledged operation. At the same time, sometimes it is necessary to work right now and run into the store for a new device once. Often, the problem can be solved on the spot without resorting to the cardinal methods.

Why the keyboard may not work - search for the cause of the problem

If some light bulbs burn on the connected keyboard, everything is not so bad. More difficult, if the device does not give any signs of life at all. The first action that must be made is the definition possible cause Fault. To do this, it is necessary to carefully inspect the device, connecting wire, check the connection and decide on further actions. Then you need to connect a problem keyboard to another computer. It will not hinder to connect to your computer a well-good keyboard to your computer and make sure that there are no problems with software connecting ports. Speaking easier, you need to figure out - the keyboard does not work, or problems lie in the computer.

Physical breakdown

Most of these problems have quite noticeable outlines - trimmed wire, mechanical damage, etc. By the nature of the detected flaw, you can make an approximate conclusion about the fate of the device, although the damage to the case does not really necessarily mean a complete output of the keyboard. The situation is more complicated when the keyboard does not work that does not have visible signs of damage. If when connected to another computer, the problem is saved, you should check the condition of the connecting wire. Often it is shifted near the entrance to the device body or (less often) on the connecting plug.

Habit to keep a mug with tea, coffee or other drinks next to the keyboard, a lot of devices disabled

Problems in Po

If when connected to another computer, the keyboard works in normal mode, then the reason will most likely lift in the software. You may need to install or update the device driver. First of all, you need to check the condition of the keyboard in the device manager. In Windows 7, you need to click on the "Computer" in the "Start" menu. In Windows 10, you can open it by typing "Device Manager" in the taskbar search window. If in the keyboard item there is a problem device name without additional icons (usually this yellow triangle with exclamation familiar), So, the system sees it and does not find any problems.

Other reasons

Lovers snack while working on a computer often shed various fluids on it. The habit of keeping the mug with tea, coffee or other drinks next to the keyboard, there was a lot of devices, but it seems to be eradicated, it will be possible. Usually traces from spilled fluid remain on the surface, even if they are erased in time. Signs of such a malfunction is the absence of a normal reaction to some buttons, sticking separate buttons, random commands from the keyboard. Often it starts to print one letter or execute the command.

The wireless samples have a frequent problem with batteries. When their container begins to fall significantly, the operation of the device is made unstable and at some point completely stops.

What to do if the keyboard does not work - solving the problem in various ways

Problems arising from the keyboard in most cases are overcome. The procedure depends on the specifics of the problems arising and is selected in accordance with their scale. Consider a possible algorithm of actions in a particular case.

Repair or replacement of keyboard, connecting cable

Mechanical breakdowns of the device can be restored only with small amounts of destruction. The fracture of the case or similar major malfunctions are not to be left for success. The most successful actions can be cleaning the device from penetrating into the liquid (sweet tea, coffee) or replacing the connecting wire.

To clean up, you will need to disassemble the device. The keyboard is disconnected from the computer. All buttons are carefully removed, rubber transmitters are removed, spots from dried drinks with a soft tassel with alcohol. After cleaning is completed, the keyboard is collected in the reverse order. Special attention It is necessary to pay the installation of large buttons that are not simply inserted into the corresponding nests, but are fixed with metal guides.

Video: Connecting cable repair

If there is no ready-made solder plugs at hand, it is easiest to get a new keyboard and not waste time looking for the desired parts or elements.

Repair can only be produced in the presence of skills and knowledge of the design. All actions taken by NAVAUM are not provided with positive results. If the essence of the broken breakdown is unclear, then it is correct to just replace the keyboard to a new one, good.

Usually drivers on the main peripherals available in the kit windows systems. However, new elements, wireless or having a series additional featuresrequire the use of your own software. The required drivers are supplied with devices on CDs. In the event of a loss or absence, you can find the Internet for the Internet and install on the computer. There is a simpler way - to open the device manager, find the keyboard item, click on it with the right mouse button and select "Update Drivers" in the drop-down list. The system itself will find and install the desired software.

Usually drivers on the main peripherals are available in the Windows system.

This change may be needed if the old keyboard is replaced with the PC / 2 connector to a more modern with the USB connector, or when the device is connected to the laptop. In the BIOS settings, you need to find the "USB CONTROLLER" tab and set the "Enabled" value. Then you need to find the "USB Keyboard Support" tab (it can still be called "USB Legacy Support") and also install "Enabled". If you plan to work with the DOS keyboard, you will need to enable the appropriate value in the "USB Keyboard Support Via" tab, although it is not available in all versions of the BIOS.

Such a change may be needed if the old keyboard is replaced with PC / 2 connector to a more modern USB connector

Experts note that problems with USB keyboards are quite common. In order to avoid them, you can use the PC / 2-USB adapter. In this case, most problems are solved automatically, but the adapter's performance must be checked.

Setting up the keyboard itself

The keyboard setting is performed in the control panel: "Start" menu - "Control Panel" - "Keyboard" - "Properties: Keyboard". Can change:

Speed \u200b\u200b(frequency) of the repeat of the symbol playback when the key is pressed.
Delay before starting the repetition. The parameter determines the time required to appear the next character when the key is pressed.
Cursor flicker frequency on the screen.
Default information entry language.
Switching key layouts.
Additional support for languages

The keyboard setting is performed in the control panel: "Start" menu - "Control Panel" - "Keyboard" - "Properties: Keyboard"

The keyboard setting is usually not produced, since the usual parameters are initially installed by default. However, as a result of any user actions or system failures, settings may change, so when any problems appear, it is recommended to install them in the desired order.

One of the reasons for the device failure can be a virus that came to the computer from the Internet or from an infected external storage device

One of the reasons for the device failure can be a virus that fell to a computer from the Internet or from an infected external storage device. When signs of unsustainable work or full failure appear, you need to start a complete check of the computer to viruses. You can use your own antivirus programinstalled on the computer for which you need to click on the program icon in the taskbar and click the "Check" button, most antivirusers it is on main page And it's clearly visible. You can also download and run DR.Web Cureit utilities! Or Kaspersky Virus Removal Tool. it free programs, effectively detecting threats that can be missed by the installed antivirus software.

At the end of checking and removing detected threats, the computer reboots

Upon completion of checking and deleting detected threats, the computer restarts and the device is checked.

Checking the performance of the Keyboard itself

You must be sure that the keyboard works. To do this, it should be connected to another computer and check the performance. If the problem persists, the cause of the fault lies in the device itself. If it starts to work in normal mode, the problem of hardware or software origin arose in the computer. This verification option should be used one of the first, although there is no other computer at hand. The ability to localize the problem allows you to significantly speed up its solution.

Other

The color of the socket corresponds to the color of the plug, for the keyboard it is lilac

Keypad problems may occur for other reasons. For example, if you connect the PS / 2 device to the computer turned on, then you can disable motherboard. Many users relate to such an action too frivolous, especially those who use a USB keyboard. It can be removed and when the computer is enabled, but with old PS / 2 such an extraction option is unacceptable. It is necessary to turn off the computer regularly and only then disconnect the keyboard and connect the other. In addition, the PS / 2 plug and the mouse slot located nearby are often included.

The keyboard has stopped working in most cases, you can restore or make it work again. The main issue will be the feasibility of such restoration, as far as it is durable and reliable. The price of the new device is not so great to spend time on the refused keyboard with an unpredictable result. Therefore, making sure that the reason for the failure lies not in the hardware of the computer or software, but in the keyboard itself, it is necessary to decide whether to repair it, or it is easier to buy a new one. Independent actions are usually produced due to lack of time or when there is nothing to lose, the attempt will not spoil anything. You can give the keyboard to repair only if it is expensive, the payment of recovery is incomprehensible with the price of a new device. In other cases, the most reliable solution will be the acquisition of a new keyboard.

The keyboard is the most important component control item, and when it suddenly refuses to work, it does not think that it is a catastrophe. Today we understand why the keyboard does not work in Windows 7, and what to do with it.

Immediately agree that before the start of work operating system It is impossible to say the keyboard or not. All indirect signs, such as flashing indicators, not informative, because depend on the set of conditions. On the few exceptions will be written at the end of the article.

All causes of faults can be divided into two groups.

Mechanical:

break or damage to cable and ports;
wet;
pollution;

Software:

programs in the work of programs;
errors B. bIOS parameters;
not those drivers, etc.

Windows 7 does not work keyboard - physical damage

You can check the connector, just sticking it to another port. Earned? So the problem is in ports. Often on old keyboards with PS / 2 connector with inaccurate use, the legs of the contacts are closed, - and the keyboard is turned off. As for the cable, it is necessary to watch it until the connection to the connection to system block. It is possible that it is very frightening, shifted or twisted, and therefore the signal does not pass.

If the cable is pebble, extras, etc., then you can repair the keyboard, only cutting off the old cable and the new one.

A frequent cause of the keyboard failure is unnecessary wetting. And it is not necessary to shed a glass of sweet coffee onto it. The constant effect of small moisture is more cunning, but no less efficient. With a wet keyboard options for only two. The first - gently develop the keyboard and thoroughly wipe it from the inside, then dry and collect back. The second is just to buy a new one.

The problem can be played with completely new paints if the keyboard does not work on windows laptop- I just do not replace it. The most important thing is not to try to wipe the keyboard from above and turn on the laptop, the likelihood is great, that it is just shortened, and the fluid will have time to leak deeply. It is better to attribute "pet" to repair, where to check if the liquid was proceeded on system fee And the contacts are not damaged, experts will be able.

The same story with pollution. Lite's crumbs that do not give the keys to go on contact with the right pressure, whether food remains working in this case as well as liquids. The solution to the problem also coincides with 100% - to develop and clean yourself or to redevelop.

Software errors

As for the second group of the causes of the keyboard failure, then with due attention to its electronic friend, you will dismake with them without any problems.

Errors in the BIOS parameters, and first - disabling the support of the USB keyboard. We go to the BIOS, we find the desired section - either USB Keyboard Support, or Legacy USB, and look at what is worth it. We need ENABLED. At the same time you can put the same value to all USB settings, you look, it will earn what has long been considered broken.

The issue with errors of programs and drivers is solved in two ways. First - update. Open the Device Manager (Start - Control Panel in Windows 7 and immediately in the start of 8 and 10 versions). We find the keyboard in the list, highlight the right mouse button and in context menu Select update drivers.

If this did not help, in the same place, select the keyboard in the manager and give the command to delete. After that, click "Update Equipment Configuration" or reboot the computer. This will force the system to reinstall the keyboard driver completely, which automatically eliminates errors.

A pair of nuances
Why do we not talk about the keyboard breakdown before loading? If the keyboard does not work in Windows 7 immediately and does not respond to the system request when you start the computer, then Windows stops loading. The computer simply will not turn on. And often the sound signal makes it clear that there is a problem.

And last. Modern multimedia keyboards have a keyboard combinations that block the keyboard. And reboot and other this blocking will not be turned off. If you have such a keyboard, you need to either store instructions with a list of all key combinations and their functions, or know at least the main universal. Typically, the keyboard is turned on by simultaneously pressing the Fn + Win keys. If it does not help, look at the keyboard with the lock button on the keyboard and press it, also in combination with Fn.

Sometimes users encounter such a problem that they do not work part of the keyboard on the laptop. In principle, it happens that the entire keyboard does not work immediately, but then, most likely, it just needs to be replaced. But if only part of the buttons stops functioning, everything is more complicated.

We will consider everything that can be done in this case independently, without the involvement of specialists.

Simple ways to solve the problem

Not always to restore the performance of a part of the keyboard, you need to do something complicated. Often the problem is solved quite simple. Therefore, from the beginning, do this:

1. Try click on the Fn keys and Num Lock. It is possible that pressing one of them blocked some buttons on the keyboard.

2. Hold fn and press Num Lock, then release both buttons. In some cases, such a simple way allows you to start a full-fledged keyboard operation.

3. Take a brush and pass it on all buttons. It is possible that some dust accumulated under one of the buttons. If possible, take the vacuum cleaner. On the Internet you can find special vacuum cleaners for the keyboard of a small size.

Vacuum cleaner for keyboard

4. Restart the computer. In some cases, the system may have some minor bug that does not allow specific buttons.

In most cases, the problem will be insignificant, and it can be corrected using one of these actions. If nothing happens, go to the next step.

Fix the program failure

It is possible that the problem is in the wrong operation of some programs or services. To check this option and correct the problem, you must do the following:

1. Boot from under the secure mode without drivers. To do this, restart the computer and immediately start pressing the F8 button. Among the download options will select "Safe Mode".

Note: Depending on the system configuration, the button to select the download mode may differ. Therefore, try using all the buttons from F1 to F12, if pressing F8 does not help. As a result, such a window should appear as shown in Figure 2.

System loading mode selection options

2. Try to create some kind of document and use all the keyboard buttons. You need to check not only those buttons that previously refused to work, but all the others! If it really is in software failureThe set of broken keys can change each time a new start.

So, if all buttons work well, it means that the problem is really in the operating system. Most probable solution Problems lies in updating drivers. Best do it standard method:

open the Start menu (Windows), then "Control Panel", find there "Device Manager";

Device Manager in Control Panel

open the keyboard item;
usually there is only one keyboard, click on it with the right mouse button and select the "Update Drivers ..." item (if there are several keyboards, which is very unlikely, do the same with everyone);
select the "Automatic Search ..." item;
wait until the drivers are found on the Internet, their installation will occur in automatic mode.

Driver Update Standard Windows Mode

And you can also download and install dRIVERPACK program Solution. It allows you to scan the entire computer for the presence of the latest drivers available. If the keyboard has incorrect (roughly speaking "broken") or irrelevant drivers, you can easily bring them. The use of this program is as follows:

download the program (here is the link);
install it and run;
there will be automatic scanning, after which simply click on the "Update All" button.

Window DriverPack Solution

Scan the system with your antivirus and delete all detected viruses. And also for this you can use special utilitiessuch as Kaspersky Virus Removal Tool or Malwarebytes Anti-Malware Free.

If the update and scanning of the drivers does not help, try to roll back the system until it worked well.

To do this, you need to do this:

open the "Start" menu, then "All Programs", "Standard";
after that, go to the "Service" section and click on the "Restoration System" item;

Item "Restore System" in the "Start" menu

in the window that opens, click "Next";
further select the desired recovery point, and they are sorted here by date and time (you need to choose the one that most accurately matches the time when everything was fine);

Choosing a recovery point for system rollback

click "Next" and then "Finish".

In principle, reinstall the drivers and roll back the system and in cases where safe mode The keyboard also works incorrectly. But in this case, the probability that it will help, very small. Most likely, the problem is already mechanical, and not software and solve it needs to be physically interfered with the computer.

Fix physical failure

In this case, you will have to disassemble the keyboard and stages to look, which could be out of order. To do this, follow these steps (it is very important to adhere to just such a order in which all actions will be further listed):

1. Turn off the laptop and remove the battery from it.

2. Take a flat screwdriver and carefully push all the latches of the plate on which the keyboard holds. If you do not see any laptops on your laptop, you should take the instructions and read that it is written about the keyboard device and how it is extracted. In any case, some fastening mechanisms should be present.

The process of opening the keyboard plate latches

The keyboard plate is attached to the laptop itself using a loop. You will immediately see it.

3. So, if it is clear damage, the loop you need to just take out and replace the new one. To do this, take the old train, go to the nearest electronics store and buy the same.

Clay keyboard

4. If the loop is not damaged, it still needs to be removed. The cable at the same time to take the guides in no case! You can only take on those plastic parts with which it is attached to other parts of the laptop. For clarity, in Figure 10 shows those parts for which you can also be taken and those for which it is impossible to take. True, there are usually several other loops in the keyboards.

5. In the same place, under the keyboard plate you can find a microcontroller. It is necessary dry and try to pull dust With the help of a vacuum cleaner.

Explain how to find this most microcontroller is quite difficult. If you just say, this is exactly the device to which the loop is mounted. Just in case, when removing the keyboard, pass through all the controllers that you will see. Alone without any special knowledge nothing will do anything else. Again, if you will see explicit damage on the microcontroller, it is better to replace it.

Laptop with a shot of a keyboard

6. If everything is fine with the loop, you have to disconnect the keys and clean them. Usually, the button can be removed in the standard way - to pose the same flat screwdriver. Start with problem buttons. If you see damage under them, replace the items that the button is attached to the laptop.

The process of seizure the buttons from the keyboard

7. Try to use the keyboard again.

If the problem has not disappeared, remove all the buttons and remove the aluminum plate that is under them. Usually, she also has special attachments that are removed quite easily. But under it is hidden plastic board with drawn tracks.

Inspect it for obvious damage - if any, there are two options: draw new tracks or buy a new board. In any case, walk along the platform with a vacuum cleaner.

To check the integrity of the tracks, use the tester.

Checking the integrity of the tracks on the keyboard board tester

To draw tracks, use the set for repairing the heating of the rear windows of the car (and is called).

If nothing helps, it is best to pass a computer to repair.

The video below shows the process of disassembling the laptop keyboard.

Part of the keyboard on a laptop does not work: what to do and how to fix - detailed guide

If you do not work the keyboard on the computer, then you hit the address. Here you will find step by step instructions By decision of such problems. There may be many reasons for such a problem, and there is also not enough solution. First you need to understand exactly when this problem arises and with which it is connected. Typically, the keyboard can take fun while booting the operating system when entering a password or during operation when entering text. The first malfunction depends on the type of keyboard, and the second from the mechanical impact on it.

Why the keyboard must be cleaned periodically

Immediately I want to say that if you do not part with the keyboard, even while eating, then select time, turn it off, and it is pretty.

The sticking of the keys and the incomprehensible keyboard operation most often happens at those people who love to nourish anything while working at a computer, or what is even better - drink beer or carbonated water.

If your keyboard is not packed in protective film, all crumbs and liquid from a bubble drink will be in her inside. Do not necessarily shed drinks on the keyboard. It is enough to put a glass with a bubble drink next to her, and all these bubbles will fall on the keyboard, and even fall inside her.

And if you like to nibble seeds or nuts, then crumbs have probably accumulated in your keyboard, which is enough for a good hamster lunch. Do not believe?! Then take the keyboard in your hands, turn it over, and shake over the table.

What to do if not workingUSB-keyboard

Check the keyboard connection. If it is wired, then the wiring could be broken inside the cord or at the base or at the USB connector.

If the keyboard is wireless, then check the batteries inside the keyboard and the USB transmitter connected to the computer connector or laptop.

It happens that the transmitter or the USB connector is defective, where it is connected. If it's in the USB connector, connect the transmitter to another connector.

Check the keyboard connection settings inBios.:

Enter B. bIOS settings (how to do it, read in the article);
We are looking for a USB keyboard Support or Legacy USB (it depends on the BIOS version) and switch the disabled to Enable.

Perhaps with a USB keypad you cannot enter the BIOS settings. Then you need to find a keyboard with an old PS / 2 connector or find an adapter for the old connector.

What to do if the keyboard does not work on the protocolPS./2

Find the keyboard with the PS / 2 connector in the store is not so easy, but some have it still in the go and sometimes can also give a failure.

In order for the keyboard to earn again, you must reinstall its driver:

Right-click on the "Start" menu button and in the drop-down list, select "Device Manager".
Find the keyboard in the list of devices and expand the list. Usually, if there are some problems with the device, then a yellow circle with an exclamation or question mark will stand near this device. Click on the HD keyboard with the right mouse button and select Delete action. Confirm your action and close the Device Manager.

Restart the computer. When loading, the computer itself will install the required driver.

Why the keyboard does not work when loading the system

Most often, such a casus occurs with a wireless or USB keyboard while reinstalling the system or during the loading mode selection. In this case, no indicators on the keyboard are lit (try clicking the Capslock button) and the buttons are not triggered.

In this case, you also need to enter the BIOS settings, find there the USB keyboard support or Legacy USB (it depends on the BIOS version) and switch the disabled to Enable.