The wireless keyboard does not print letters, what should I do? The keyboard does not work on the computer: reasons, what to do

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Laptop keyboard not working? You can't say what it is typical situation For modern technology, this is a rather rare breakdown of laptops. And if in the case of a PC you don’t even have to figure out the cause of the breakdown, simply replacing one keyboard with another, then in the case of a laptop things are much more complicated, because its keyboard is an integral part of a single integral structure. What could be the reasons for the breakdown of a laptop keyboard, what consequences can presumably be expected, how to get out of a situation when you urgently need to enter text on a laptop that is not working - we will consider all these questions below.

1. Is there a blacklist of laptop models that are prone to keyboard failure?

Before we begin to directly consider the problem of a broken laptop keyboard, a few words about whether it is possible to prevent the occurrence of such a situation. Is there such a black list of laptops? specific models, goods specific manufacturer, which in practice would prove their tendency to cause keyboard failure? No. On the market computer equipment There are no models that are prone to this particular breakdown in practice. A laptop keyboard from any manufacturer can fail. And this applies to both flagship models, and budget ones.

2. Possible reasons for laptop keyboard failure

Before taking your laptop to service center, you can try to figure out on your own why the laptop keyboard does not work. And if this software glitch or problems with the keyboard cable, your attempts may be successful, and you will save on the services of a service center. So let's get started.

2.1. Software glitch

The reason the laptop keyboard fails may be due to errors in the Windows operating system itself. As a rule, this happens when the drivers fail. You can check this in the BIOS. To enter the BIOS, restart the laptop and hold down the Del key. In some laptop models, the F1 or F2 buttons may be used to enter the BIOS. This point can be clarified in the laptop manufacturer's instructions. If the keyboard works in the BIOS itself, you can boot Windows in safe mode to further test whether the keyboard works without drivers and with a minimum set of system services.

To get in safe mode Windows XP, Vista, 7 you can use the F8 key, which you need to hold while the system boots. A boot mode selection menu will appear, where you must select to boot in safe mode without drivers. In the case of Windows 8/8.1, entering the system’s safe mode is somewhat different; some preliminary steps are needed system settings. Follow the path:

“Control Panel” - “Administration” - “System Configuration”.

In the “Downloads” tab, set the value to “Safe Mode”, click “Apply”, “OK” and reboot. After rebooting you will be in safe mode.

You can return the settings to their previous state in the same way by removing the “Safe Mode” value.

So, you have entered Windows Safe Mode. Check the functionality of your laptop keyboard. If the laptop keyboard works in safe mode, then the problem lies in the drivers. If the keyboard is in safe Windows mode does not work, while the BIOS responds to data input, most likely the problem is in the operating system itself.

After returning to normal mode Windows operation work on installing or updating drivers.

Download and install the driver pack. This is a special type software, designed to select drivers for specific hardware components computer device. Having scanned the laptop and determined the drivers necessary for installation, the driver packs automatically remove their installers from their database and carry out the installation. Driver packs on the Internet can be found in the form of a DVD with an existing driver database, but it is much easier to quickly download and install the driver pack software client, which, after scanning, will only download from the Internet necessary drivers in the newest, most current version.

DriverPack Solution, Slim Drivers– client programs for these driver packs can be downloaded absolutely free on the Internet. These are the top two among driver packs; they are popular among users because they are free and have a regularly updated driver database. Swipe with using driver pack scan the laptop and install (or update) the drivers that the program indicates.

You can install or update drivers without using driver packs. Download them manually from the official website of the manufacturer of your laptop model.

If the work of installing or updating your laptop drivers does not solve the problem with the keyboard not working, you can try reinstalling Windows itself. For example, Windows XP is today an outdated operating system, and perhaps with Windows installation 7 or 8/8.1 problem with non-working keyboard will disappear.

2.2. Pressed out or oxidized contacts of the keyboard cable

If you are already long time If you are using a laptop, perhaps the problem with the keyboard not working lies in the oxidized or pressed out contacts of its cable. To check this option and attempt to solve the problem, the laptop will have to be disassembled. If this is your first time disassembling a laptop yourself, use the instructions from the manufacturer. Instructions for many device models can be downloaded on the Internet in electronic form, in particular, on the official website of the same manufacturer. You can also watch video tutorials on how to properly disassemble a laptop on YouTube or other resources.

Having reached the keyboard cable, disconnect it by sticking it out of the connector and carefully inspect it. If you see obvious damage upon inspection, then this is the reason for the laptop keyboard not working. And you can solve it by replacing the cable.

If everything is in order with the keyboard cable, wipe its contacts with an ear swab moistened with alcohol, or use a regular eraser. After cleaning, insert the keyboard cable back and test.

2.3. Microcontroller failure or liquid spilled on laptop

If the reason for the laptop keyboard not working is a burnt out microcontroller or spilled liquid, in this case you cannot do without the services of a service center. It is impossible to thoroughly determine which hardware components of the laptop are faulty and solder them at home (of course, if you are not a specialist).

When liquid is spilled on a laptop, if it gets on the board, over time this leads to oxidation of the contacts. As a result, the keyboard completely fails. If you accidentally spill liquid on your laptop, immediately turn it off, remove the battery, and dry it with a hairdryer on a gentle hair-drying setting. If your hair dryer model has a cold air button, use only cold air. This is necessary in order to, if not prevent, then at least slow down the process of oxidation of contacts, microcircuits and boards.

3. I urgently need to enter text on a laptop with a non-working keyboard – what should I do?

Your laptop keyboard isn't working and you urgently need to send a message. Or even to download the same driver pack from the Internet, you will need to enter its name into a search engine. What to do in such a situation?

3.1. Windows virtual keyboard

Windows OS has built-in functionality that emulates a physical keyboard - this is the standard On-Screen Keyboard application. Click the "Start" button, select " Special abilities", and here - "On-screen keyboard".

Click with your mouse required keys to enter characters. On screen Windows keyboard The “Options” button has been implemented; when you click it, you can make some settings to customize the application for yourself.

Windows 8/8.1 OS, in addition to the standard On-Screen Keyboard application, has an alternative in a slightly different format. This is special touch keyboard for tablets and laptops with touch screen– a smoothly sliding window with large buttons so that they can be easily reached with your finger. If your laptop has Windows 8/8.1 installed, on the panel Windows tasks call the content menu and select “Properties”.

The “Taskbar Properties” menu will open, go to the “Toolbars” tab and check the “Touch Keyboard” option.

3.2. USB keyboard

If we are talking about speedy typing of a test, of course, you can’t do much with the on-screen keyboard. You can connect a physical USB keyboard through the laptop's USB port.

3.3. Bluetooth keyboard

Bluetooth keyboard – physical keyboard, which can be connected to a laptop via bluetooth module. Almost everything modern models laptops are equipped with this module.

It often happens that you are preparing to do some important work, and then bam - the keyboard on your computer does not work. What to do in this case? How to cope with this disaster? It will not be difficult to understand this and find solutions. This article will discuss a question that often arises among novice home PC users or already experienced specialists. Yes, it's all about the keyboard - it sometimes works, sometimes it doesn't, but the work needs to be done. There can be many reasons for such problems, and most of them can be solved by the user himself, without leaving his workplace. The issue of purchasing a new device can be postponed until the resource of your existing “capricious” friend is completely exhausted. Apart from attention and the ability to perform actions correctly, no special skills are required from the user in the process of solving the problem. For any model of any manufacturer computer keyboard reasons for refusal to work and ways to eliminate them efficiently in a short time will be given.

Possible reasons for device failure

Using the method of the legendary Sherlock Holmes - the method of “deduction” - you can determine what is broken or what is preventing the keyboard from doing its job. Factors of such problems can be called:

human, that is, the breakdown is caused by the actions of the user himself;
iron, or in other words, equipment failure;
software - violation of settings and necessary programs and their complexes.

Understand why the keyboard on the computer does not work, what to do in this case, you can by studying and going through the possible reasons. Based on the identified factors, the reasons for malfunctions in the operation of the device may be the following situations:

1. If the user himself, through his actions or inaction, has caused problems with the keyboard:

The integrity of the device’s connection ports has been compromised, or its cable has been broken (squashed);
moisture getting inside the input device due to an overfilled cup of tea, coffee or direct rain from the street;
excessive contamination of the internal parts of the keyboard with dust, animal hair, food crumbs and other debris.

2. If the problem is in the equipment itself:

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

3. The main reasons for software malfunctions in the keyboard can be called:

failure of device drivers;
the main settings of the motherboard (BIOS) have been lost;
disabled for some reason in the operating system itself.

All of the above reasons and options for their solutions are discussed in more detail below.

The cable or port is damaged

How can I find out if this is the reason why the keyboard on my computer does not work, what should I do if confirmation of this particular problem is found? This question can be answered after certain simple diagnostics have been carried out. To do this, the user needs to do the following.

1. To check cable integrity:

Look at the indication on the keyboard itself and try to turn on/off the “Caps Lock” and “Nam Lock” buttons. If the LEDs light up, then most likely the problem is not in the cable.
If the LEDs do not light up, connect the keyboard to another free port (USB or PS/2, depending on the type of device). The LEDs lit up - the cause has been found. The problem is a damaged port.

2. How to check the functionality of the keyboard connection port:

Take any other device with the same type of connection and try to connect it to this port - if it works, then the problem is not in the port, but in the keyboard cable or its electronic component.
If the other device does not work, then you need to double-check the motherboard (BIOS) settings to make sure the power is turned off for the specified port.

After such a check, there should be a result that gives an understanding of what is broken, or allows you to understand that the problem is not in the cable and the keyboard port. Eliminating the problem of a broken cable or port is only possible with the help of professionals at computer and office equipment repair centers.

Faulty device

Although this is quite funny, there are times when a user tries to connect a “dead” keyboard and is very nervous that it does not work. This happens due to forgetfulness and ignorance. All the same, after going through all the points of analysis, you can easily understand everything.

It spilled just a little bit

How to understand why the keyboard on the computer does not work, what to do? But does it beep and blink the lights (or just beep)? In this case common cause Problems can occur if liquid gets inside the device: tea, coffee, drinks or just water. All this liquid is conductive, and therefore leads to a short circuit, which can cause the sensitive electronic elements of the keyboard itself or port controllers on the motherboard to burn out.

In order not to buy a new device, the user can carefully disassemble the keyboard and dry all the elements. With a 50 percent chance he can expect success, that his girlfriend will “come to life.”

The garbage woke up, or Oh, those kitties

Eating in the workplace, as well as the presence of pets with fur, have a very bad effect on the PC input device. And then the question arises: “The keyboard on the computer does not work, what should I do in this case?” The answer is simple - just like with a device filled with liquid, you need to complete cleaning its interior. If you're lucky, the lumps and tufts of dirt didn't have time to cause short circuit elements, and then everything will work again.

Factory defect, or Time takes its toll

Keyboard like electronic equipment may be assembled with defects, leading to its rapid failure. In this case, it is necessary to send it for repair to the manufacturer’s service center. If guarantee period service has already expired, then you need to compare prices for repairs in paid workshops and a new keyboard, choosing for yourself best solution. You can identify such problems in a way similar to diagnosing the device cable and connection port.

Power surge or computer electrical failure

If in this case the keyboard on the computer does not work, what should I do? When loading, you need to pay attention to how the computer itself behaves: everything goes as usual, or the startup occurs (does not occur) with a failure. The result of a PC failure to start may be a voltage surge in the electrical network or a failure of the power supply, which, in turn, can affect both the operation of the keyboard and the performance of the entire computer device as a whole. To determine if the keyboard is faulty, in this case you need to connect it to another computer and test it.

Drivers have crashed

None of the above worked. The keyboard on the computer does not work, what should I do? Windows 7 Genius keyboards sees well and, if possible, picks up drivers for them himself. But it happens that a device from another company or with special multimedia capabilities, then they are required separate installation. If suddenly such a keyboard stops working, perhaps the drivers for it have simply disappeared. It's easy to check in the "Device Manager" - if the keyboard has a yellow question mark icon, then it's the drivers.

BIOS lost settings

If the keyboard on your computer does not work, what should you do? Windows 8, as well as others more early versions The OS stubbornly refuses to connect the device. In this case, you need to restart the computer and look into the motherboard settings (BIOS) by clicking “Divide” or “F2” (for some computer devices) at startup. Among the tabular settings, you should first compare the date and time with the real one (if it shows a very old one, then you may need to replace the battery on the motherboard), and then find the line indicating the power supply to the ports (USB or PS/2). If disabled, enable. You can also simply reset the settings to factory defaults by selecting them in the proposed menu.

Antivirus, or OS protection programs

It happens that the keyboard on the computer does not work, what should I do? But the virus beeps and at the same time displays a message about the found Trojan or malware. In this case, most likely, the drivers or the keyboard key control program were mistaken for a virus, which led to the device being blocked from accessing the operating system and, accordingly, to its inoperability. Here you will need to create an exclusion rule for the antivirus in its settings, indicating to it the location path installed drivers or programs.

It also happens that the keyboard on the computer does not work, what should I do? The virus can infect the drivers and device management programs themselves, and therefore you cannot create an exception rule. First, you need to reinstall the corrupted files, and then conduct a full scan of your computer for malware.

In this article we are going to understand important issue: Why doesn't the keyboard print? This phenomenon is not as rare as we would like. But you shouldn't be afraid of him. Problems with are resolved without special problems. And only in some situations it is necessary to make a lot of effort to improve the functioning of the computer component. But for what reasons might the keyboard refuse to work? And what to do in this or that case?

Connector damage

The first case does not occur very often, but it does occur. Especially on older computers. For laptops, this situation is relevant only when we're talking about about a separately connected keyboard.

What is it about? Why doesn't the keyboard print? The problem may lie in the equipment connector. It sometimes breaks or gets damaged. In this situation, the keyboard cannot be connected. If used old model(PS/2 socket), it is advisable to change the equipment to USB. Or connect the device to another connector. You can also try to repair the nests. But this technique will not provide a long-term guarantee of the device’s operation.

Drivers

Why doesn't the keyboard print? The next, more common reason is the lack of drivers for additional buttons. If the device refuses to work, it is recommended that you first reinstall the drivers for it. Or update them.

Typically, keyboards come with a disk with the appropriate software. Next And if the reason lay precisely in the drivers, then everything starts to work. You can optionally turn the device off and on after logging into the operating system. But everything is not always as simple as it seems. After all, a computer is a device that can present various surprises. And fixing them is not always easy or simple. So what other options for the development of events can be identified?

Clogging

Why doesn't the keyboard print? This question sooner or later begins to concern almost every user. This is especially true for those who do not monitor the computer and its components at all. The keyboard does not print some letters? What to do? If we are talking about a device that has been working properly for at least a month, we can only advise one thing - to clean the component.

The keyboard is a device that can get clogged. Dust, food debris, crumbs - all this remains between the buttons. And we are talking about laptops and desktop computers. Therefore, all keyboards need to be cleaned from time to time. At least once a year. Or as needed. It is also recommended not to eat in front of the monitor. This technique will allow you to avoid clogging the connected device again. By the way, this problem is the most common scenario.

Now it’s clear why the keyboard doesn’t print. Just pay attention to the fact that you should not clean it yourself. Especially if we are talking about a novice user. And even more so, it is not recommended to clean the laptop keyboard yourself. It is better to take the input device to a service center. Almost everywhere offers keyboard cleaning services. In just a few hours, you can fix the problem that has overtaken the user. After cleaning, the keyboard will work at full capacity.

Rearrangement

But these are not all options for the development of events. Sometimes it happens that the keyboard prints the wrong letters. And in this situation it is very difficult to find an explanation for what is happening. After all, the device actually works. Just not the way it should be. There is only one reason that letters print numbers or not what is needed. This is an incorrect assembly of the device. If you disassemble the keyboard, you will notice that each button has its own mechanism. The computer receives a signal from a certain key and prints a particular character. For the convenience of the user, these mechanisms are labeled as buttons on the keyboard. If the latter are swapped, it appears that the device is printing the wrong characters.

Therefore, in this situation there is only one solution - to assemble the keyboard correctly. That is, place the mechanisms located under each key in in the right order. Doing this on your own is very problematic. Therefore, it is best to take the gadget to a service center. If you don’t want to think again about why the keyboard doesn’t print, you shouldn’t wipe and wash this component yourself. Often the problem with incorrect placement of buttons occurs precisely after self-cleaning. Not the most dangerous, but not very pleasant moment either.

Incorrect assembly

Keyboard buttons not working? What should I do? First of all, don't panic. Secondly, analyze your recent actions with this device. In most cases, the user himself becomes the culprit of problems with components connected to the computer. What to do if If the user tried to figure out the device on his own, it is recommended to immediately take it to a service center.

The cause is incorrect assembly of the input device. Most likely, when the user tried to assemble the keyboard, something came loose somewhere important contact. This is not uncommon and should be kept in mind. Eliminate this problem you can do it yourself. But users point out that in inept hands the keyboard will never work. Unless it is completely broken. And craftsmen usually manage to disassemble the device the first time and assemble it so that it works fully and without interruptions.

Marriage

What to do if the keyboard does not print? Much depends on the situation. If we are not talking about a new device, then the above scenarios may well be the reason for the failure of the component to work. But what to do when the conversation is about the keyboard you just bought? If all the drivers have been installed, the problem most likely has only one cause - a defect. And here only a complete replacement of the keyboard will help. It is recommended that you immediately contact the store where you purchased the device. There it will be possible to make an exchange. Otherwise, you will have to buy a new gadget.

Incompatibility

What to do if the keyboard doesn't work? You need to find out why the connected device refused to perform its functions. In fact, only in rare cases do users experience serious incidents as the cause. Much more often, all problems can be solved on your own.

Why doesn't the keyboard print? The whole point may be that the device is incompatible with the operating system. This problem appeared quite recently. Most often, users who have Windows 10 encounter this problem. Older models use this operating system. similar problem not visible. Yes, the keyboard has its own too minimum requirements. And you should pay attention to them. Because you will either have to change the device eventually, or reinstall the operating system to one compatible with the gadget.

Viruses

Keyboard buttons not working? This device gave up work altogether? If all of the above cases do not apply, you can think about the last, rarest scenario - infection of the operating system. Viruses are the main enemies stable operation computers. They can affect not only software, but also connected devices. For example, under their negative impact the keyboard either does not print, or displays the wrong characters, or it even enters several letters/numbers per press.

There are two ways out: reinstalling the operating system from scratch or treating the computer for the corresponding infection. In the first case, you will have to completely format HDD, only then reinstall the OS. And the second option, as a rule, does not turn out to be effective enough. For this reason, it is recommended to save all data and reinstall the operating system on your computer. This way the virus will disappear 100%.

Have you ever had a situation when, while working at your computer, you suddenly noticed that the keyboard refused to type? And it doesn't matter whether you correspond in in social networks or you are printing the most important work in your life: a thesis, a master’s thesis, or a much more promising professor’s thesis. You are wondering why the keyboard on your computer does not work. You reboot the operating system in the hope that everything will fix itself, but it doesn’t. The keyboard, as before, does not respond. You start to panic. What to do? Call a specialist to your home or buy new keyboard? What if it's a laptop? There is an exit!

To fix this unpleasant breakdown, you first need to figure out what type of keyboard you have connected.

Computer keyboard connection type

USB keyboard. This type is the most common in our time. The USB keyboard uses plug-and-play technology (plug and play), so most often problems arise with the connection. As soon as the keyboard stops responding, the first thing you need to do is disconnect it and plug it back into the USB port of your computer device. Perhaps the contacts just went missing. Usually such actions lead to eliminating the problem. But it also happens that the breakdown is not in the keyboard itself. If these actions do not lead to positive result, there is a possibility that the port itself on the computer is broken. Try connecting the device to another device, or at least to a different USB port on your PC. Having completed these steps, you can already discard some of the guesswork about why the keyboard on your computer does not work. Windows XP, 7, Linux configure device connection settings differently. There is a possibility that the problem is in the software or operating system settings.

PS/2 computer keyboard. This type of connection has been used for a long time and is considered the most reliable, because it does not require driver installation. The keyboard connector has 6 pins for connection. It happens that if you connect the connector inappropriately to computer port One of the contacts may be bent. It needs to be aligned for the keyboard to work. If the keyboard stops working while working on it with the PC turned on, rest assured that the problem is in the operating system or software. Perhaps some process is slowing down its work. The main difference between a PS/2 computer keyboard and a USB one is that if the device fails, you must restart the computer to make it work again. After all, this is not plug-and-play technology.
Wireless keyboard - modern type information input devices, but this does not mean that it is without flaws. It can also refuse to work like other types of devices. You may think for a long time why it doesn’t work. wireless keyboard on a computer, but major breakdowns and problems most often arise when something blocks the USB receiver. In this case, you need to clear the computer desk of unnecessary things and see if it works now. Essentially, a wireless keyboard is the same USB peripheral device, with the only small difference: there are no wires. In this regard, it is necessary to first check the signal blocking. If no changes have occurred, then you must follow the steps described in paragraph USB computer keyboards.

Troubleshooting the problem via BIOS

You have completed the steps mechanical removal problems, but unfortunately it didn't help. Panic covers you. Why doesn't the keyboard on my computer work? Windows 7, first of all, needs to be rebooted. Perhaps the problem will go away on its own.
Try pressing the Esc button several times to see if the display auto-start menu appears. If the program does not respond, you need to replace the keyboard - the problem is not in the software.
If the autorun menu works, press F10 to bring up BIOS menu. In the settings you need to set the default values, this is done by pressing the F5 key. Some devices may have different hotkeys.
After making changes to the BIOS, you must restart the operating system.
If after these steps you still have not solved the problem and are asking yourself why the keyboard on your computer does not work, then you need to reinstall the keyboard software in Device Manager.

Reinstalling and configuring the keyboard software

In the control panel of any operating system in the Start menu there is a “Hardware and Sound” item, under which you can view devices and printers. This is exactly the section we need. Clicking on the window right click mouse, you must select "Device Manager". Do not forget that you must have administrator rights, otherwise you will not be able to change the settings hidden devices. So, in the new open window we are looking for the required Keyboards item and trying to solve the problem of why the keyboard on the computer does not work. Windows 7, 8, XP have slightly different interfaces, so the path to the settings menu may be slightly different. When calling the object control panel, you must select the item to reinstall and update the hardware and driver configuration. After restarting the computer, the equipment should work correctly.

Problem pressing multiple characters with one keyboard key

Sometimes, while typing on the keyboard, a situation arises when the keys get stuck and several characters are typed at once. And the problem is not that you press the keys for too long. The whole point is in the keyboard response settings. To change these settings, you need to go to the search bar in start menu"Start" manually enter the word "keyboard". A new window will appear before your eyes; when you open it, you should correctly adjust the delay speed for entering a repeated character. From now on, you will not worry about why the keyboard on your computer does not work correctly.

1 way to fix keyboard inoperability outside the operating system

Often there are situations where the keyboard does not work due to incompatible drivers on the operating system. Exist different versions"Windows": 32 and 64 bit. How are they different and why are they needed? different drivers? The main difference is in processing different volumes random access memory. That is why it is necessary to install different types of drivers so that the most inopportune moment Don't panic why the keyboard on your computer doesn't work. Windows 8, 7, XP, Linux require installation different types software. But to find out if this is the real cause of the problem, you need to restart the computer and watch, pressing the NumLock and CapsLock keys on the keyboard, check their functionality using the indicators that light up.

2 way to troubleshoot keyboard problems via CMOS

Another way to check the functionality of the keyboard outside the operating system is to go into the CMOS settings and try the keyboard in safe mode. Sometimes the operating system malfunctions; safe mode will fix this problem. If the CapsLock and NumLock keys fail, you must go to the first method.

A computer device beeps when typing from the keyboard: solutions

Why doesn't the keyboard on my computer work correctly? There are situations when, when working with a set of character characters, a computer device emits sound signals. In this case, you need to change your keyboard settings. To go to the settings, you need to register in search bar the word "Keyboard".

In the control panel results that appear, there is an option to change them. You need to follow this link, next to the “Make typing easier” item, uncheck the sticky keys checkbox and go to their settings. In the new window that opens, uncheck the box next to Sticky keys when pressing the Shift button five times. We save the results by clicking on the OK button, after which the previous keyboard settings window automatically opens. In it, uncheck the box next to the item for voicing switches by clicking on Num Lock button within 5 seconds. After saving the settings, the computer device will no longer produce meticulous beeps.

The numeric keypad refuses to work

Some users, when purchasing a peripheral device, sometimes wonder why the numbers on the keyboard on the right do not work. This situation happens quite often on a computer, especially in the operating room. Ubuntu system. What to do in this case? Try just pressing the two key combination: Shift + Num Lock. Most often this helps. There is a possibility that with numeric keypad Mouse control is configured. To turn it off in the operating room Windows system, you need to press the combination Alt keys+ Shift + Num Lock. There is another more difficult path go to optical mouse settings. But why complicate your life when pressing a keyboard shortcut can solve the whole problem?

Why the keyboard on the computer does not work when turned on: problem solving

To solve this problem, you must follow these steps:

Check the connection itself. It doesn't matter what type of keyboard: USB, wireless or PS/2. If there is a connection problem or signal loss, the keyboard will not work.
If everything is fine with the connection, you need to download new version software compatible with your operating system and reinstall it for your keyboard.
When reinstalling the driver did not help, it means that you need to configure everything manually through the BIOS, CMOS or Control Panel.
If it is possible to connect the keyboard to another computer device, check its functionality on it. On every operating system software settings are on different paths. It is necessary to know the operating system interface well in order to solve the problem of why the keyboard on the computer does not work. Windows 8.1 is perhaps the most complex system for configuring software changes. But you don't need a lot of knowledge to change keyboard settings. You must strictly follow the instructions, and then your peripheral device will work again as quickly as before.

Possible reasons for some keys on the keyboard not working

There are cases when, due to carelessness or carelessness, the user of a computer device spills water, tea or other drinks on the keyboard. And it’s good if the computer owner himself did this, because he knows where the problems with the peripheral device are coming from. But when someone else did it and did not admit it, the owner will scratch his head for a long time why the USB keyboard on the computer does not work. But most often it happens that certain buttons stop working. Then you need to disassemble and manually clean the keyboard, and if it has already oxidized, then completely replace it. After all, there is little chance that it will now work as before.

Note to users

Now you know the possible causes of a computer keyboard failure. It will be new to some users to learn that any operating system automatically installs and screen keyboard. If a peripheral device fails, it will definitely help you.

On a computer, few will envy. And, as often happens, such troubles most often happen precisely when reports are being submitted, recruitment is being carried out during the battle for the fate of the world in the next computer game etc.

On the other hand, the question “why the keyboard doesn’t work on a computer” is not asked too often, since with the beginning of the “USB era” many “childhood diseases” in this area of computing devices are a thing of the past. In light of this, a broken keyboard is a reason for a kind of pride in one’s “luck.”

Connection

In all modern keyboards to connect with motherboard serial interface is used USB bus. It has a number of advantages over the discontinued PS\2 standard, among which we can especially note the possibility of “hot replacement”. That is, the user can theoretically, when enabled system unit connect and disconnect the plug corresponding to the free connector. And many people use this, especially owners of portable computers. In such a case there are two negative points. Firstly, it was noticed that frequent switching of the device leads to the fact that the spring-loaded contacts in the plug lose their elasticity, resulting in poor performance (the power or data line disappears).

It is not surprising that this is followed by the question “why the keyboard on the computer does not work.” Thus, when frequent connection The plug wears out and needs to be replaced. Secondly, sometimes when a device was hot-swapped, it failed, so this opportunity should not be abused. To check the contacts, you need to disconnect the keyboard plug and carefully reconnect it, gently shaking it in the connector. Sometimes it is possible to return the contacts with a needle to their previous spring-loaded state.

Electrical problems

Like any other USB device, the keyboard receives power directly from the port. And since the features of the internal implementation of the bus are such that several connectors are connected to one control chip at once, when powerful devices (with a current of 500 mA) are turned on, their functionality is not guaranteed. The solution is simple: if the question arises “why the keyboard does not work on the computer,” then you need to disable everything USB devices, except the most necessary ones, and check the functionality.

At large quantities simultaneously using USB peripherals, you need to use an intermediate splitter with external source. Also, quite often the problem with USB is observed in old computers and laptops, the power supplies and other elements of which have exhausted their service life and do not produce the required voltages. The solution is similar to the above. And, of course, do not forget that the fault may be in the connector itself: to check, you need to connect the plug to another USB port.

Software glitch

Modern OS To interact with the keyboard, a driver control program is used. Sometimes it stops working correctly. As a result, the user cannot understand why the keyboard on the computer does not work. You need to use the mouse to go to the “Device Manager” and try to update the driver in the “Keyboards” item. If this does not help, then you need to remove the device using the appropriate command and reconnect the keyboard to the computer - the Plug&Play mechanism should work.

Settings incident

IN modern BIOS motherboards There is a clause that allows you to opt out USB usage, setting the mode to Disable. If for some reason this happens, then you need to find an old PS/2 keyboard, use it to enter the BIOS (Del button immediately after turning on the power) and enable USB. Another option is to reset the settings to their initial state by closing the corresponding Clear CMOS jumper on the board (its exact location is indicated in the instructions). Beginners are sometimes faced with the fact that the keyboard on the right does not work. This may be caused by accidental pressing to the NumLock button, which switches the modes of the right digital block. If the indicator of the same name is on, then you need to press the button again to switch it to another state.