I reinstalled Windows 7 and the keyboard doesn't work. Keys do not work in a certain program or game

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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, first of all you need to unplug 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 PS/2 computer keyboard from USB 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 the wireless keyboard on your computer does not work, but the main 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 the USB computer keyboard paragraph.

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 symbols, 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 need to 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 possible reasons 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.

You may encounter the fact that the USB keyboard does not work at boot in different situations: this often happens when reinstalling the system or when a menu appears with a choice safe mode and other Windows boot options.

As a rule, this situation does not occur with a keyboard connected via the PS/2 port (and if it does occur, the problem should be looked for in the keyboard itself, the wire or the motherboard connector), but it may well occur on a laptop, since the built-in keyboard may also have USB interface.

Before continuing reading, check if everything is ok with the connection: is it in place? USB cable or wireless keyboard receiver, whether someone touched it. Even better, take it out and plug it in again, not in USB 3.0 (blue), but in USB 2.0 (Best in one of the ports on the back of the system unit. By the way, sometimes there is a special USB port with keyboard and mouse icon).

Is USB keyboard support enabled in BIOS?

Most often, to solve the problem, it is enough to go into the computer’s BIOS and enable the initialization of the USB keyboard (set USB Keyboard Support or Legacy USB Support to Enabled) when you turn on the computer. If this option is disabled for you, you may not notice it for a long time (because Windows itself “connects” the keyboard when you boot and everything works for you), until you need to use it when loading the operating system.

It is possible that you cannot enter the BIOS, especially if you have new computer with UEFI, Windows 8 or 8.1 and fast boot enabled. In this case, you can get into the settings (Change computer settings - Update and recovery - Recovery - Special options downloads, then to additional parameters select entry into UEFI settings). And after that, see what can be changed to make everything work.

On some motherboards ah, setting up support for USB input devices at boot is a little more sophisticated: for example, in my UEFI settings There are three options - disabled initialization during ultra-fast boot, partial initialization and full initialization (at the same time fast loading must be disabled). And the wireless keyboard works at boot only in the latest version.

I hope the article was able to help you. And if not, describe in detail exactly how your problem arose and I will try to come up with something else and give advice in the comments.

Date of publication: 05/10/2012

There are many reasons why your keyboard may not work well or may not show any signs of life at all. First, you need to immediately determine the root cause of such a breakdown: software or hardware. Speaking in simple language- either the keyboard itself is faulty, or the problem lies in the Windows settings.

So, in order...

The keyboard works, but some keys do not work well (stick, do not respond to pressure, etc.).

The reason is usually simple - the keyboard is dirty.

You need to disassemble the keyboard and clean it. It doesn’t matter what kind of keyboard you have (usb, standard, wireless, built into the laptop). Turn the keyboard over and unscrew a few screws. Here you will see that under each button there is a rubber pad. Sometimes it happens that the lining breaks or “slips” out of place.- as a result, the corresponding key does not work. Then you just put everything in its place.

The key buttons can be wiped with anything, any cleaning agent. But it’s better not to touch the translucent film and everything else. By the way, so as not to get confused later about where each key should be, take a photo of your keyboard in advance. Of course, you can then find your keyboard model on the Internet and arrange the keys. But, still, it is much more convenient to take a photo of your keyboard. Some even number the keys in pencil to avoid confusion later. After “cleaning”, arrange the keys in their places, place the rubber pads (they can be placed in any order - they are all the same). The work is painstaking, but the result will be a perfectly working keyboard.

Plug problem

If you have a classic keyboard (with a round purple plug), then sometimes it happens that the small legs of the plug can bend.

In general, this type of connector is called PS/2. Purple is for the keyboard, green is for the mouse. If you forcefully try to insert the plug, the legs may bend. Then you need to take tweezers (or small pliers) and straighten all the legs.

USB keyboard

This regular keyboard, only it is connected not to the PS/2 connector, but to the USB connector.

If such a keyboard does not work when connected, then the problem most likely lies in the BIOS settings (SETUP). When you start the computer, press Del (or F6, everyone has different keys).

And since in bios settings If you can’t use a mouse, then a reasonable question arises: “How can I press Del at startup, and how will I configure the bios if my keyboard doesn’t work???!” The problem can be solved simply - go to your neighbor and ask him for a keyboard for 5 minutes :)

Wireless keyboard

I’ll ask you a stupid question: “Have you charged your keyboard?”
Surprisingly, the battery usually just runs out and people forget to recharge it.

And it also happens that Windows simply cannot install drivers for your wireless keyboard. Then search for drivers on the Internet manually.

Drivers

It happens that some new installed program unknowingly corrupts keyboard drivers. If you have Windows 7 installed, then driver problems should not bother you. The system itself installs and restores drivers. Usually, you just need to restart your computer.

But there are times when the driver is damaged, or new driver doesn't work well. In such cases, you can proceed in two ways. First, restore the system to the day when the keyboard worked properly. Secondly, you can go to the device manager and update the drivers, or view their properties by looking at the diagnostics.

Keys don't work specific program or game

You should find the program or game settings and look at the key assignments. In general, study the settings. In games, as a rule, keys can be reassigned. And in programs, look at the list of hot keys.

Some other tips

If, when you turn on the computer, it makes three long beeps (beep, sound), this means that you have inserted the keyboard incorrectly. Simply pull out the plug and reinsert.

If the keyboard suddenly does not work, first of all, check it on other computers. If you only have one computer (usually everyone does), then go to your neighbor and check the keyboard on his computer.

Sometimes it happens that the mouse (computer) starts to work poorly - it jams and freezes. The mouse will constantly seem to be disconnecting and connecting (at the same time the computer will make sound signal about connecting the device). Due to the fact that the computer will constantly recheck the input devices connected to it, the keyboard will also begin to work poorly. Then just pull out the mouse and recheck the keyboard.

There are also cases when the mouse and keyboard cannot work at the same time. This happens EXTREMELY rarely, but it can happen. Somehow, some mouse models are simply incompatible with some keyboard models(?!). I personally encountered such a case only once. Usually you can fool the computer in this case. You need to find the mouse or keyboard in the registry and assign different names to them. Sometimes this helps... For the same reason, joysticks (gamepads) may sometimes not work in games. For example, the game allows you to use gamepads only from Microsoft, and the rest simply do not work. Then you need to find your gamepad in the registry and rename it to Microsoft.

If the keyboard does not work, and you still need to find something on the Internet (for example: drivers for the keyboard), then you can use the on-screen keyboard.

That's all. Ask questions - I will be happy to answer them.
Thank you for your attention!

Latest tips section "Computers & Internet":

Council comments:

It turned out that the keyboard and mouse were incompatible. I switched the mouse to another port, all the letters on the keyboard worked. I suffered for a month

When you connect a USB mouse to a laptop - it works, add a USB keyboard - only the keyboard works, the mouse stops responding.

Hello. I can’t install Enable in the BIOS because it doesn’t exist there. There are only disable and ani kay. what to do? When rebooting, it creates 1 beep and the button goes out when it exits to the desktop. and the keyboard doesn't work.

Thank you! I received an answer, but the fact of the matter is that they didn’t give me any connectors for the USB, what is my solution!?

I bought a LOGITESH mouse and keyboard a long time ago without wires, only with a battery compartment, and since then it has been a dead weight and I don’t know what to do!?

Robert, the kit should include USB connectors. You insert them into the USB ports, and turn on the power on the keyboard and mouse (the switch is usually at the bottom). Then go to “Start” - “Control Panel” - “Hardware” - “Add a device”.

I can't find the answer; I bought a non-wired keyboard and mouse in a store without instructions, which only have compartments for Logitesh batteries without chips!? I DON'T KNOW how to use it!!! What to do!?

Another thing may be with the keyboard (I know from my own experience) sometimes the bolts are loose on the back and because of this not all the keys work) I tightened it up and everything is fine))

hit the keyboard a couple of times in the laptop the keys do not work: n, g, r, o, t, b what to do

I just bought a wireless keyboard for the Vivacase 10" tablet, universal for 10" for Android with a case, but some keys from the first row of letters QWER YUIOP T do not work, CAPS LOCK alternately... The keys are flat, but you can pick them up with a thin strip of cardboard... Can I “pick them out” and have a look? if it doesn't break... maybe it's nonsense. What could be the reason, how can I fix it myself?

When I turn on the computer, the keyboard starts working, and when I turn it on, the computer stupidly stops working. What should I do? Help me!!

On a laptop, the s, z, and space buttons sometimes stop working. Either they work or they don’t. The laptop is not flooded or dropped. What could cause such keyboard failures?

oh night, I really need help, I have Windows 7 Home Premium, we updated it to 10, but it didn’t work, we rolled back to 7 as indicated in the settings and the keyboard doesn’t work, when I try to enter the bios it shows a safe mode, safe with loading network drivers ,safe with support command line, Entering the boot log, enabling low-resolution video mode (640/480), last known known configuration, debugging mode, disabling automatic reboot on system failure, disabling mandatory driver signature verification, normal Windows boot. When entering the first three modes, the keyboard still does not work, as I understand it, there were problems with the keyboard drivers during the rollback, how can I fix this if the disk drive of a laptop (Toshiba Satellite) does not work?

I have to press several times until the action appears on the screen, but now I’m typing everything fine, and when I started the text I pressed the letters 5-6 times. how to fix this. costs 10

If on a laptop the keyboard does not work (partially) and the on-screen keyboard works, can we assume that the keyboard controller is working (in other words, the on-screen keyboard uses the keyboard controller in its work or not

The landline is not working yet physical keyboard, you can still type on the online keyboard ladonnik 5 (hybrida). It is similar to YTSUKEN, but more convenient. On it you can print both in Western European languages and in Slavic and Asian (CIS) languages.

the keyboard is working, the old computer was broken (the video card was broken), I recently changed the video card, I turn on everything, but the keyboard does not work, all ports and the keyboard are working, to turn on the computer it says (press enter), as I understand it on the keyboard, but as if it shows no signs of life, although working?

The keyboard is the main tool for entering information, without which working on a computer is impossible. Most often, to this device worked flawlessly, you just need to connect it to your computer and that’s it necessary drivers it will install automatically. This happens in most cases, but not always. There are situations when, when you connect a keyboard to a USB or PS/2 connector, it is not detected on the computer and does not show any signs of operation - the indicators do not light up and the buttons do not work. In this article, we offer instructions on what to do if the keyboard on your computer does not work.

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Connecting the keyboard to the computer is as simple as possible - just insert its wire into the corresponding connector on the motherboard, and after that the device will start working. There are wireless keyboards, the radio receiver from which is inserted into the USB connector, after which the device works if the distance between the transmitter and the device is maintained.

Due to the simplicity of the process of connecting a computer, we can conclude that there are only 2 reasons why the keyboard does not work on the computer:

Mechanical. There may be problems with the keyboard itself or the wire that connects it to the motherboard. The cause of the malfunction may also be a broken connector on the motherboard.
Software. Keyboard drivers are installed automatically, but the installation process for any software may fail and this situation not an exception. In addition, problems may occur not at the operating system level, but in the BIOS, where the appropriate settings for the keyboard are disabled.

Depending on which connector the keyboard is connected to the computer, we offer different variants solutions to emerging problems.

What to do if the keyboard does not work on the computer via USB protocol

The most common interface for connecting a keyboard to a computer is USB. The speed of information transfer from a peripheral device to the computer is sufficient, both via the USB 2.0 protocol and via USB 3.0, so there is no difference in which connector the keyboard is connected to.

If the USB keyboard does not work when you turn on the computer, you need to do the following:

It is worth noting that users whose keyboard is connected to the motherboard via USB may have problems entering the BIOS on the computer boot screen if using old version basic software. In this case, you need to find a keyboard with a PS/2 connector or use the appropriate adapter.

What to do if the keyboard does not work on your computer using the PS/2 protocol

Keyboard manufacturers are trying to move away from the PS/2 connector, abandoning it in favor of USB. It is very difficult to find a keyboard with a PS/2 connector on sale, but if you come across such a peripheral and it does not work with booting Windows, most likely the problem is related to the drivers. To make the keyboard work, you need to do the following:

It is worth noting that similar problem with keyboards connected via the PS/2 protocol, most often occurs due to an error when installing the i8042prt.sys or kbdclass.sys driver.

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 have a clause that allows you to refuse 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.